catia tutorial.pdf

1

CATIA V5 Fundamentals

CATIA V5Fundamentals

Infrastructure

Sketcher

Part Design

Assembly Design

2


The Workbench Concept

Each workbench contains a set of tools that

is dedicated to perform a specific task. The

following workbenches are the commonly

used:

• Part Design: Design parts using a solid modeling approach

• Sketcher: Create 2D profiles with associated constraints, which is then used to create other 3D geometry.

• Assembly Design: Assemble parts together with constraints

• Drafting: Create drawings from parts or assemblies

• Generative Shape Design: Design parts using a surface modeling approach

General

3


User Interface

Below is the layout of the elements of

the standard CATIA application.

A, Menu Commands

B. Specification Tree

C. Filename and extension of current document

D. Icon of the active workbench

E. Toolbars specific to the active

workbench

F. Standard Toolbar

G. Compass

H. Geometry area

A

C

E

F

B

H

G

D

General

4


Type of Documents

The common documents are:

A, A part document (.CATPart)

B. An assembly document (.CATProduct)

C. A drawing document (.CATDrawing)

A

BC

General

5


Display SettingsTo improve the 3D surface accuracy,

Use the Tools->Options... Command, then open the tab page Display->Performances

Then lower the fixed sag value to make the

surface look smoother

You can also change the background color on the

tab page Display->Visualization

General

6


View & Hide Toolbars

- Select “View > Toolbars”.The list of current toolbars is displayed. Currently visible

toolbars are indicated by a tick symbol to the left of

the toolbar name.

In the list, click the toolbar you want to view or hide.

- You can detach toolbars from the application

window border by dragging the double line to the left

of the toolbar: you can drag the toolbar anywhere around the screen, then dock the toolbar in the

same or in another location by dragging it onto the

application window border

- To restore the original positions of the toolbars on

the current workbench, select

“View>Customize>Toolbars>Restore position”;

General

7


Change the view with the mouse

A. Panning enables you to move the model on a plane parallel to the screen. Click and hold the middle mouse button, then drag the mouse.

B. Rotating enables you to rotate the model around a point. Click and hold the middle mouse button and the right button, then drag the mouse.

C. Zooming enables you to increase or decrease the size of the model. Click and hold the middle button, then click ONCE and release the right button, then drag the mouse up or down.

Middle button

Right button

General

8


Rendering Styles

A. Shading

B. Shading with Edges

C. Shading with Edges but

without smooth edges

D. Shading with Edges with

hidden edges

E. Shading with Material

F. Wireframe

More:- To change the color or

the degree of transparency,

right-click on the element

General

9


Show & Hide

A. Hide/Show

(Hide an element by transferring it to the “No Show” space)

B. Swap visible space

(Swap the screen from “Show” to “No Show” or vice versa)

You can select any elements in the “No Show” space and transfer it back to the “Show”space by clicking the “Hide/Show” icon

For the hidden elements, their icons are shaded.

A B

Elements

are now

hidden

General

10


Reference Planes

The default reference planes are the first three features in any part file. Their names are derived from the plane they are parallel to, relative to the part coordinate system:

XY plane

YZ plane

ZX plane

It is impossible to move or delete the planes.

The planes can provide a planer support on which to create a 2D sketch. Global coordinate system

General

11


Create a Sketch

1. Select a planer support (e.g.

datum plane, planer solid face)

from the specification tree or by

clicking the support directly.

2. Select the Sketcher Icon

from any workbench where is

possible to create a sketcher

(e.g. Part Design workbench).

3. CATIA switches the current

workbench to the sketcher

workbench; The viewpoint is

now parallel to the selected

plane.

1

2

3

Sketcher

12


Toolbars in sketcher

A. Profile: Create 2D elements, such as

points, lines, arcs, circles and axes.

B. Operation: Modify the existing

elements, such as chamfer, fillet, trim,

and mirror.

C. Sketch tools: Provide option

commands

D. Constraint: Set various dimensional

constraints (e.g. length, angle & radius)

& geometrical constraints (e.g. coincidence, concentric, horizontal and

symmetric)

E. Visualization: Simplify the view

A

B

C

D

E

Sketcher

13


Construction Geometry

Construction geometry is created within a sketch to aid in profile creation. Unlike standard geometry, it does not appear outside the sketcher workbench.

Construction geometry is shown in dashed format. When the “Construction/Standard element”icon is on, all sketched elements will be created as construction elements.

You can also toggle any elements from standard to construction, or vice versa by clicking the “construction/standard element”icon.

Construction geometry

Sketcher

14


Sketch Assistant

This is a line on the sketch

When the cursor is on the line, the line will turn in orange and an empty circle appears next to the cursor

When the cursor is at the endpoint of the line, a solid circle appears next to the cursor

CASE-1

CASE-2

We are going to draw a line, which is tangent to the arc

Before clicking the second point of the line, move the cursor until the system can detect that the line is tangent to the arc. Click and confirm the position.

Tangency

Sketcher

15


Constraining the sketch

• Dimensional Constraints

(click the icon, then select the element(s))

• Length

• Distance

• Angle

• Radius/Diameter

Remark: To create the dimensions continuously, double-click the icon so that the icon is always on until you re-click it again

• Geometrical Constraints

(multi-select the two elements by pressing “CTRL” key and click the icon)

• Perpendicularity

• Horizontal/Vertical

• Concidence

• Tangency

• Symmetry (multi-select the elements on the both side and then select the axis)

You can also create constraints with other sketches and 3D elements out of the sketch

Sketcher

16


Controlling the direction of a

dimension constraint

The default dimension direction is

parallel to the line between the

circle centre. To change the

direction to horizontal or vertical,

right mouse click and select the

desired orientation.

Sketcher

17


Color and Diagnostic

1. White: Under-constrained

2. Green: Fixed/Fully constrained

3. Purple: Over-constrained

4. Red: Inconsistent

Only case 1 & 2 are allowable

in CATIA; for case 3 & 4, you

must fix the error before

quitting the sketcher workbench, otherwise a

warning message will pop-out

Sketcher

18


View Orientation

• By default, the screen is parallel to

the sketch support.

• To making constraints between

the sketch geometry and the 3D

element, you may need to rotate

the model into a 3D view.

• To return the default orientation,

select the “Normal View” icon.

We can create a distance

constraint between the circle

centre and the solid edge

Sketcher

19


Exiting the Sketcher

• To exit the sketcher

workbench, select “Exit

Workbench” icon

• After that, the screen will be

back to 3D view and the

workbench will be switched

back to the original.

Sketcher

20


Sketcher

• EXERCISE 1

• Create a sketch on xy

plane

• Circle centre at (0,0,0)

• The geometry is

symmetrical along both x,

y axes.

• R40 must be tangent to

R16

• No endpoint is isolated

• Useless elements must

be cleared

Sketcher

21


Part Design• Feature-Based Solid Modeling

Sketch Pad

Fillet

Hole

Parent and Children RelationIf deleting Hole, we get:

If deleting Fillet, we get:

If deleting Pad, we get:

22


Toolbars in Part DesignA. Sketch-Based Features: Create a solid

feature from a 2D sketch/profile

B. Dress-Up Features: Add fillets/chamfers

on the solid edge, add a draft onto the solid faces, Hollow the solid, offset

faces…

C. Transformation Features: Change the

3D position of the solid, duplicate the

solid by mirroring/ patterning, scale

up/down the solid…

D. Surface-Based Features: Split the solid

with a surface/plane, adding material onto

surfaces…

E. Reference Elements: Create a point, a

line or a plane in the 3D space.

A

B

C

D

E

F

G

F. Boolean Operations: Join different bodies

G. Analysis: To display information about

drafts/ surface smoothness/ threads & taps.

in one/ Structuring the part history tree.

23


Limit TypeType of limit are :

A. Dimension

B. Up to Next

C. Up to Last

D. Up to Plane

E. Up to Surface

AB

CD

E

A new

plane

surface

24


Pad & Pocket

A. Pad (material added by extruding a sketch)

B. Pocket (material removed by extruding a sketch)

A B

A

B

You can define the extrusion direction by selecting a datum plane, a line, a planar

surface, and a straight solid edge.

25


Shaft & Groove

A. Shaft (material added by rotating a sketch)

B. Groove (material removed by rotating a sketch)

A B

A

B

You can draw the rotation axis in the profile sketch or draw another straight

line as the axis

axis

26


Rib & SlotA. Rib (material added by

sweeping a profile along a center curve)

B. Slot (material removed by sweeping profile along a center curve)

A B

Center curve

Profile

Profile Control

-Keep Angle

keeping the angle value between the sketch plane used for the profile and the tangent of the center curve

-Pulling Direction

Sweeping the profile with respect to a specified direction

27


Multi-sections SolidA. Multi-sections Solid

(material added by sweeping one or more planar section curves along one or more guide curves

B. Removed Multi-sections Solid (material removed in the same way)

A B

- You can always create Section 1 another plane other than xyz

planes

Section 3

Section 2

- You can use an

additional guide

curve to control

sweeping path

- If sections do not

have the same

number of vertices,

use “ratio coupling”

28


Comparison of common features

Remove Same Curve PlanarSlot

PlanarCurveVariousAddMulti-section solid

PlanarCurveVariousRemoveRemoved multi-section solid

Add Same Curve PlanarRib

PlanarStraight lineSameRemovePocket

PlanarStraight lineSameAddPad

Guide/Center Section profile

curve

Section along

the guide

Add/Remove

material

29


Hole

A. Hole (circular material removed from the existing solid); Several types of holes are available: Simple, Tapered, Counterbored, Countersinked, Counterdrilled.

A

To locate the center of the hole

precisely inside the sketcher

workbench, Select the “positioning sketch” icon

Positioning the hole center

30


Fillet

A. Fillet (creating a curved face of a constant or variable radius that is tangent to, and that joins, two surfaces.)

A

EdgeVariable Radius

Face to face

Tritangent- With the Tangency mode, a fillet is applied to the selected edge and all edges tangent to the selected edge

- With the minimal mode, a fillet is applied only to the selected edge

31


Chamfer

A. Chamfer (removing & adding a flat section from a selected edge to create a beveled surface between the two original faces common to that edge.)

A

Two Dimensioning Modes

Length

1

Angle

Length

1

Length2

32


Draft

A

Draft Angle

A. Basic Draft (adding or removing material depending on the draft angle and the pulling direction)

Neutral Element

Side faces to draft

Pulling direction

Remark: Neutral element

always keeps unchanged after a draft is created

33


Shell

A

A. Shell (empty a solid while keeping a given thickness on its sides)

Face to remove

The face-to-remove cannot be tangent to the nearby faces.

All edges around the face should be sharp edges.

34


Translation & Rotation

A. Translation (translating a solid along a direction)

B. Rotation (rotating a solid about

an axis by a certain angle)

Be careful, the sketch

won’t move with the solid.

35


Symmetry & Mirror

A. Symmetry (translating a solid to the other side of the mirror plane)

B. MIrror (duplicating a solid on the

other side of the mirror plane)

36


Patterns

A. Rectangular Pattern

B. Circular Pattern

C. User Pattern

(duplicate the features at the points created in sketcher workbench)

A

B

C

To duplicate a list of features,

multi-select the features before clicking the icon “pattern”

37


Split the solid

A. Split (splitting a solid with a plane, a face or a surface) A

The arrow is pointing to the material to keep; you can click on the arrow to reverse the direction

You can hide the cutting surface after the operation


38

A. Assemble

B. Add

C. Union Trim

+ =

+ =

- =

The positive bodies are added together and if anyone of the body is negative then the material is removed from the other body.

Two bodies are added together

The unwanted portion of the first body is removed from the second body.

A

Boolean Operations

B C D


39

D. Remove Lump

=

E. Remove

F. Intersection

- = First body is removed from the second body.

E

= +

This option removes the unwanted solid in the space.

Creates the intersection between two bodies.

F


40

A. Draft Analysis

B. Curvature Analysis

A B C The Draft Analysis enables to detect if the part drafted will be easily removed from the die.

Curvature analysis enables to map the curvature of a given surface.

Tap and Thread analysis shows how to display and filter out information about threads and taps contained in a CATPart document

Analysis

C. Tap and Thread Analysis

41


Part Design - exercise

• EXERCISE 2-

STEP 1

� Open the CATPART file done

in Exercise 1

� Make sure that the current

workbench is PART DESIGN

� Create a “Pad” with the

height 5.5mm (first limit)

42


Part Design - exerciseSTEP 2

� Create another sketch on zx-

plane

� The sketch should have an axis

and a triangle with these

dimensions (45deg, 35deg,

2.5mm High)

� One edge of the triangle should

sit on the bottom side of the pad

and its peak should not be inside

the pad

� Exit Sketcher

� Create a “Groove” with First

Angle Limit 360deg

43

CATIA V5 Fu ndamentals


� Create the 3rd Sketch on yz-

plane

�The sketch should have an axis

and two lines, which are

symmetrical

� One end point sits on the axis

and the other sits on the

outermost plane of the solid

�Exit Sketcher

� Create a “Pocket” and select

“Up to Last” for limits on both

sides

44



� Create the 4th Sketch (a

circle Dia 28mm) on the top

planar surface of the solid

� Create a “Pocket” with depth

1.5mm

STEP 5

� Create an offset “Plane”

(15mm from yz plane)

45



� Create the 5th sketch on the

offset plane

� Draw a circle (Dia 3.0mm;

distance between the solid

base and the circle center is

2.5mm)

� Exit Sketcher

� Create a “Pocket” with first

limit “Up to Last”

STEP 7

� Create “EdgeFillet” (2mm) at

the 4 corners

46



� Create another “EdgeFillet”

(5mm) to remove the four sharp

edges on the top surface

STEP 9

�

Create a “Chamfer” on both

sides

� Length1= 1mm; Angle= 45deg

- END of Exercise 2

47


Assembly DesignA Product stores a collection

of components (parts or sub-products). The file extension

is .CATProduct.

Product Parts

Sub-products

button

body

ring

bracklet

bracklet

Storing the constraints

between parts or sub-

products

48


Create a New Product

Create a New Product by:

A. Switching to Assembly Design

workbench; or

B. Clicking File/New/Product

Or

A

B

You can change the Product’s properties (e.g. name) by right-clicking here

49


Insert an existing component

Right-click the product tree, then select ”Components>”Existing component…”

OR Drag the part tree onto the product tree

-or

Use “copy & paste” function

50


Move components by Compass

Drag the compass from the top-right corner of the window to the component you want to move; the Compass will turn in green color

Active product

Component being moved

Drag any of the green lines of the compass to move the component

Remark:

(1)You can only move the components of the active product

(2) To reset the compass, drag it onto the global coordinate system at the bottom-right corner of the window

51


Constraints between components

A. Coincidence Constraint

B. Contact Constraint

C. Distance Constraint

D. Angle Constraint

E. Fix Component (fix a component

in space; normally we ‘d fix at

least one component)

ADCB E

When the cursor is pointing

at the curved surface of the

hole, its axis is highlighted

52

CATIA V5Fundamentals

Updating Constraints

Use compass to drag a component to another

position

After selecting “Update” icon, the component is back to its original position

The constraints need to be “Updated”

53


Instant Simulation

Drag the compass while pressing

“shift” key on the keyboard; you

will see that other components will

move with the active component

with respect to constraints

The base is fixedTheir axes are

coincided

54


Interference check

Select Type “Contact & Clash”;

“Between all components”; then

“apply”

Interference resultClash: RED

Contact: Yellow

Clearance: Green

55


Sectioning

After clicking

“sectioning” icon, a

section plane will be automatically created

parallel to the yz plane

at the product origin.

Volume Cut; When activated, one side of the volume will be hidden

You can orient the section plane by dragging the red-line of the plane

56


Assembly Design - exercise

• EXERCISE 3-

• Build the rest of components,

such as ring, button, chain as

the separate parts

• Assemble them together

• Check any interference after

assembly

CATIA V5 Generative Shape Design

CATIA V5Parametric Surface Modeling

Generative Shape Design

57


Toolbars in Generative Shape Design

A. Wireframe: Create 3D curves / lines/ points/ plane

B. Surfaces: Create surfaces

C. Operations: Join surfaces, Split & Trim surfaces, Change the 3D positions of surfaces, Fillets…

D. Replication: Pattern, Powercopy…

E. Analysis: Connection analysis, Draft analysis, curvature analysis…

F. Surface-based Features: (On Part Design Workbench), create a solid from surfaces, modify the solid by a surface…

A

B

C

D

Generative

Shape Design

E

F

58


PointPoint (Create a point in the 3D space)

Generative

Shape Design

59


Extremum (max or min point)Extremum (create an extremum element (point,

edge, or face), which is at the minimum or

maximum distance on a curve, a surface, or a

pad, according to given directions. )

Generative

Shape Design

60


LineLine (Create a line in the 3D space)

Generative

Shape Design

61

A- 6


PlanePlane (Create a plane in the 3D space)

Generative

Shape Design

62


Projection onto a supportProjection (project one or more elements

onto a support. The projection can be normal

to surface or along a specified direction.)

Generative

Shape Design

Normal to surface

Along a direction (vertical)

63


Combine CurvesCombine Curves (create a curve resulting

from the intersection of the extrusion of two

curves. )

Generative

Shape Design

A 3D resultant Curve

64


Reflect LineReflect Line (create curves for which the

normal to the surface in each point present

the same angle with a specified direction.

They can be closed or open.)

Generative

Shape Design

The normal of surface

at all points along the

curve is 38deg from

the vertical axis

65

CATIA V5 Ge nerative Shape Design

IntersectionIntersection (create wireframe geometry by

intersecting elements.)

Generative

Shape Design

Intersection curve

between two

surfaces

Intersection point between

a curve and a surface

Intersection curve between

a surface and a solid

66


Parallel CurveParallel Curve (create a curve that is parallel

to a reference curve.)

Generative

Shape Design

Offset the curve on the

surface (The resultant

curve is still on the surface)

We have a curve lying on

the surface

67


Corner

Corner (create a corner between two curves)

Generative

Shape Design

If several solutions may be possible, click the Next Solution button to move to another corner solution, or directly select the corner you want in the geometry

68


Connect CurveConnect Curve (create a connecting curve

between two curves. )

Generative

Shape Design

Point-continuous,

tangent-continuous or

curvature-continuous

Point-continuous,

tangent-continuous or

curvature-continuous

The curvature in the

middle can be

controlled by tension 69


Spline CurveSpline Curve (create a 2D/ 3D spline curve)

Generative

Shape Design

We can create an

additional line to define

the tangent direction at

a point.

70


HelixHelix (create a helix curve like a spring)

Generative

Shape Design

First Create a point

and a straight line

With Taper Angle Follows a profile

(Optional) (Optional)

71


ExtrudeExtrude (create a surface by extruding a

profile along a given direction)

Generative

Shape Design

If the profile is planar, the direction will be its normal by default. But you can change it to other direction.

72


RevolveRevolve (create a surface by revolving a

planar profile about an axis)

Generative

Shape Design

Sketch.1

Line.1

Remark: The axis must be a straight line.

73


OffsetOffset (create a surface, or a set of surfaces,

by offsetting an existing surface, or a set of

surfaces)

Generative

Shape Design

74


SweepSweep (create a surface by sweeping out a

profile along one or two guide curves)

Generative

Shape Design

Sweeping an Explicit profile- With reference surface (optional)

- With two guide curves (optional)

- With pulling direction (optional)

(We can use the above three options to

control the profile orientation)

Sweeping a Linear profile- Two limits

- Limit and middle

- With reference surface

- With tangency surface

- With reference curve

- With two tangency surfaces

- With draft direction

Profile

Guide Curve

ExplicitLine

CircularConical

Then create a draft

surface by sweeping an

inclined linear profile

along a guide curve

We first create a

guide curve (4 lines)

75


Sweep – Con’t

Generative

Shape Design

Sweeping a Circular profile- Three guides

- Two guides and radius

- Center and two angles

- Center and radius

- Two guides and tangency surface

- One guide and tangency surface

Sweeping a Conical profile- Two guides

- Three guides

- Four guides

- Five guides

76


FillFill (create a surface to fill the opening

among a number of boundary segments)

Generative

Shape Design

We can specify the desired continuity type between any selected support surfaces and the fill surface (Point, Tangent or Curvature

continuous)

Support Surface

Support Surface

The four points must

be tangent-continuous or

curvature-continuousPassing through a

point (optional)

77


Multi-sections SurfaceMulti-sections surface (create a surface by

sweeping two or more section curves along an

automatically computed or user-defined spine. The

surface can be made to respect one or more guide curves. )

Generative

Shape Design

Further control point-point matching by “manual coupling”

78


BlendBlend (Create a surface between two

wireframe elements or surface edges)

Generative

Shape Design

79


JoinJoin (join surfaces or curves as one element)

Generative

Shape Design

The two original surfaces

are hidden; a Join surface

is created80


Split & TrimSplit (split a surface or wireframe element by

means of a cutting element. You can split a

wireframe element by a point, another

wireframe element or a surface; or a surface

by a wireframe element or another surface. )

Trim (trim two or more surface or wireframe

elements)

Generative

Shape Design

Split

Trim

Cutting Element

Element to Cut

Result by

“Split”Original

Result by

“Trim”

81


BoundaryBoundary (create the boundary curve of a

surface)

Generative

Shape Design

We can select limit

points to limit the

boundary

82


ExtractExtract (extract from elements (curves,

points, surfaces or solids)

Generative

Shape Design

Only tangent

surfaces are

selected

Only Selected

surface

All surfaces are

selected

For this case, the extracted

element must be a curve.83


Shape FilletBi-tangent Shape Fillet (create a shape fillet

between two surfaces)

Tri-tangent Shape Fillet (create a shape

fillet between three surfaces)

Generative

Shape Design

Smooth: a tangency constraint

is imposed at the connection

between the fillet surface and

the support surfaces, thus

smoothing the connection.

84


Edge FilletEdge Fillet (create a constant radius fillet

along the internal edge of a joined surface)

Generative

Shape Design

Select the edge of the

Join Surface

85


Variable FilletVariable Fillet (create a variable radius fillet.

In this type of fillet, the radius varies at

selected points along a selected edge. The

fillet surface is obtained by rolling a sphere,

which radius would vary, over the selected

edge. )

Generative

Shape Design

Create a point along

the edge before

filleting

Click the box

and select the

point

After entering a

new value for

this point, we

have a different

radius here

86


Face-Face FilletFace-Face fillet (create a face-face fillet.

The fillet surface is obtained by rolling a

sphere, which radius is larger than the

distance between the selected elements,

between the selected surfaces. )

Generative

Shape Design

Remark: This is a “Joined” Surface

We can add this fillet

between two faces that

are not touching each

other

87


Tri-tangent FilletTri-tangent Fillet (The creation of tritangent

fillets involves the removal of one of the three

faces selected, as the fillet surface is

obtained by rolling a sphere, which radius is

automatically computed to be larger than the

removed surface, between the selected

surfaces.)

Generative

Shape Design

88


Translate, Rotate, Symmetry, Scale

Generative

Shape Design

Translate

Rotate

Symmetry

Scale

AffinityTranslate

Rotate

Symmetry

Scale

Affinity

89


ExtrapolateExtrapolate a surface boundary:

Extrapolate a Curve:

Generative

Shape Design

Tangent/Curvature

We can join the

extrapolated

surface with the

original surface

Tangent Continuity – this will be a

straight edge

Extrapolation without support Extrapolation with a support90


Patterns

Generative

Shape Design

Rectangular pattern

Circular pattern

User pattern

Rectangular pattern

Circular patternUser pattern

First create a sketch

with points

91


Connect CheckerConnect Checker (analyze how two surfaces

are connected )

Distance - minimal distance between two vertices

Tangency - angle between two surfaces

Curvature Difference (|C2 - C1|) / ((|C1 + C2|) / 2)

Curve Connect Checker

(analyze how two curves are connected )

Distance - minimal distance between two vertices

Tangency - angle between two curves

Curvature Difference (|C2 - C1|) / ((|C1 + C2|) / 2)

Generative

Shape Design

92


Draft AnalysisDraft Analysis

(analyze the draft angle on a surface)

(Remark: To view the draft result, we need to use the Shading

with Material mode.)

Generative

Shape Design

1

2

34

STEPS:1. Click “Feature Draft Analysis2. Define the color scale (e.g. -1, 0, +1 deg)3. Click the option “Compass” on the pop-up menu4. Select all surfaces

93


Create a New Geometrical SetTo CREATE a new geometrical set:-

- Select “Insert/Geometrical Set…” on the top menu

- Click ok

(Remark: Provided that Hybrid Design is disabled, a geometrical set will be created

automatically when the first wireframe/

surface/ plane is created)

To MOVE a surface from One Geometrical

Set to the other:-

-Right-click on the surface to access the contextual menu

-Select “Change Geometrical Set…”

-Select the other geometrical set from the list of Destination

Generative

Shape Design

94


Split (by Surface)Remark:

The surface-based features (Split, Thick

Surface, Close surface & Sew) are available

only on Part Design Workbench

Split (split a solid with a plane, face or

surface )

Generative

Shape Design

95


Thick SurfaceThick Surface (add material to a surface in

two opposite directions or in one direction)

Generative

Shape Design

96


Close SurfaceClose Surface (Add material inside the

enclosed surface so that a solid is created)

Generative

Shape Design

97


Sew SurfaceSew Surface (a Boolean operation combining a

surface with a body. This capability adds or

removes material by modifying the surface of the

solid.)

Generative

Shape Design

98


Exercise

Generative

Shape Design

Exercise 1

- Sweep/ Extrude/ Offset

- Blend/ Split/ Boundary

- Fill/ Join

Exercise 2

- Revolve/ Sweep/ Split

- Shape Fillet/ Extrude

- Symmetry/ Join

- Thick Surface

99

CATIA V5 Ge nerative Shape Design

(1) Start/Shape/Generative Shape Design

(2) To make a Sweep surface:-

• Click “Sketch” icon and select yz plane

• Draw an arc (R500) with one end (0,0) as shown in Fig.1

• Click “Exit” to complete

• Deselect Sketch.1

• Click “Sketch” icon again and select zx plane

• Draw an arc (R400) with symmetric endpoints as shown in Fig.2


Generative

Shape Design

Exercise 1No sharp edges along the boundary

A

A

Section A-A

Fig.1

Fig.2

100


(Con’t)

• Click “Sweep” icon

• Select “Explicit” as Profile Type

• Select Sketch.1 as Profile

• Select Sketch.2 as Guide Curve

• Click ok to complete

• Hide Sketch.1 & Sketch.2

(3) To make an Offset Plane:-

• Click “Plane” icon

• Select xy plane as Reference

• Enter 160mm as Offset (upward)


(4) To make a sketch on the offset plane:-

• Click “Sketch” icon and select Plane.1

• Draw the Profile as shown in Fig.3


Generative

Shape Design

Exercise 1

Fig.3101


(5) To Project the sketch onto the surface:-

• Click “Projection” icon

• Select “Along a direction” as Projection type

• Select Sketch.3 as Projected

• Select Sweep.1 as Support

• Select xy plane as Direction


(6) To Split the surface:-

• Click “Split” icon

• Select Sweep.1 as Element to cut

• Select Project.1 as Cutting element

• (Click “Other Side” option to choose the outer portion)


• Hide Sketch.3 & Project.1

(6b) To Offset the surface:-

• Click “Offset” icon

• Select Sweep.1 as Surface

• Enter 6mm as Offset (Downward)


Generative

Shape Design

Exercise 1

102


(7) To Create Two offset planes:-


• Select zx plane as Reference

• Enter 50mm as Offset (positive side)


• Click “Plane” icon again

• Select zx plane as Reference

• Enter 230mm as Offset (positive side)


(8) To Split Surfaces:-

• Hide Surface Split.1; Show Surface Sweep.1


• Select Sweep.1 as Element to cut

• Select Plane.2 as Cutting element

• Click “Other Side” option to choose the smaller portion


• Click “Split” icon again

• Select Offset.1 as Element to cut

• Select Plane.3 as Cutting element

• Click “Other Side” option to choose the smaller portion


Generative

Shape Design

Exercise 1

Plane.2

Plane.3

Result of Split.2

Result of Split.3

103


(9) To Create a Blend:-

• Click “Blend” icon

• Select the edge of Split.2 as First Curve

• Select Split.2 as First Support

• Select the edge of Split.3 as Second Curve

• Select Split.3 as Second Support

• Select Tangency for First continuity and Second

continuity


(10) To make a sketch on the offset plane:-


• Draw the Profile as shown in Fig.4


Generative

Shape Design

Exercise 1

Fig.4104


(11) To Project the sketch onto the Blend:-

• Click “Projection” icon

• Select “Along a direction” as Projection type

• Select Sketch.4 as Projected

• Select Blend.1 as Support

• Select xy plane as Direction


(12) To Split the Blend:-


• Select Blend.1 as Element to cut

• Select Project.2 as Cutting element

• (Click “Other Side” option to choose the inner portion)


• Hide Sketch.4 & Project.2

Generative

Shape Design

Exercise 1

105


(13) To Hide all constructive elements:-

• Hide all elements except Split.1 & Split.4

(14) To make 4 boundaries:-

(1st Boundary)

• Click “Boundary” icon

• Select “Tangency continuity” as Propagation type

• Select the edge as shown in Fig.5


(2nd Boundary)

• Click “Boundary” icon again

• Select “Tangency continuity” as Propagation type



Generative

Shape Design

Exercise 1Split.4

Split.1

1st Boundary 2nd Boundary

Fig.5

106

A- 51


(3rd Boundary)



• Select the point as Limit 1


(4th Boundary)



• Select the point as Limit 1


(15) To Create a Fill:-

• Click “Fill” icon

• Select Boundary.1 then Split.4 then

Tangent


Tangent


Tangent


Tangent


Generative

Shape Design

Exercise 1

3rd Boundary

4th Boundary

Fig.6

Split.4

Split.1

107


(16) To Join surfaces:-

• Click “Join” icon

• Select Split.1, Fill.1 & Split.4


(17) Hide all Boundaries

Generative

Shape Design

Exercise 1

END of Exercise.1

Result: No sharp edge between

the step-down and the original

surface

108


(1) Start/Shape/Generative Shape Design

(2) To make a Revolve surface:-

• Click “Sketch” icon and select zx plane

• Draw an arc (R160) with one end (0,30) as shown in Fig.1, which should be tangent to a horizontal axis

• Draw another horizontal axis on x-axis (which will be selected to be the axis of rotation later)


Generative

Shape Design

Exercise 2

Fig.1

109


(con’t)

• Click “Revolve” icon


• (Sketch axis will be selected as Revolution axis)

• Enter 0deg as Angle.1

• Enter 180deg as Angle.2


• Hide Sketch.1

(3) To make the 2nd Sketch:-

• Click “Sketch” icon and select xy Plane

• Draw an Arc (R90) as shown in Fig.2

• Click “Exit” icon to complete

Generative

Shape Design

Exercise 2

Fig.2

110


(4) To make reference planes:-


• select yz Plane

• then select the end point of the arc

• (“Parallel through point” will be automatically

selected as “Plane Type”)


• Click “Plane” icon again

• select yz Plane

• then select the end point of the arc


(5) To make the 3rd Sketch:-


• Draw an ellipse with one end touching Sketch.2 as shown in Fig.3

• (While adding the constraint (D30), right-click and select “semiminor axis”)

• Click Exit to complete

Generative

Shape Design

Exercise 2

yz plane

touching

Sketch.2

Fig.3111


(6) To make the 4th Sketch:-


• Draw an ellipse with one end touching Sketch.2 as shown in Fig.4

• (While adding the constraint (D10), right-click and select “semiminor axis”)

• Click Exit to complete

(7) To make a symmetric curve:-

• Click “Symmetry” icon

• Select Sketch.2 as Element

• select zx Plane as Reference


Generative

Shape Design

Exercise 2touching

Sketch.2

Fig.4 Result

Zx plane

112


(7) To make a Multi-sections Surface:-

• Click “Multi-sections Surface” icon

• Select Sketch.3 as Section#1

• Select Sketch.4 as Section#2

• Select Sketch.2 as Guide#1

• Select Symmetry.1 as Guide#2


• Hide Sketch.2, Sketch.3, Sketch.4, Symmetry.1, Plane.1 & Plane.2

(8) To Split the surface:-


• Select Multi-sections Surface.1 as Element to cut

• Select zx Plane as Cutting element

• (Click “Other Side” option to choose the correct portion)


Generative

Shape Design

Exercise 2

Zx Plane113


(9) To make a Fillet between 2 surfaces:-

• Click “Shape Fillet” icon

• Select Split.1 as Support.1

• Select “Trim Support.1”

• Select Revolute.1 as Support.2

• Select “Trim Support.2”

• Enter 10mm as Radius

• (Click on the red arrow if it is not pointing outward)


(10) To make 5th Sketch:-

• Click “Sketch” icon and select xy Plane

• Draw an Arc (R78, center at (0,0)) as shown in Fig.5

• (One endpoint must be on x-axis)


Generative

Shape Design

Exercise 2

Fig5

Circle center

at (0,0)Endpoint

on x-axis

114


(11) To make an Extrude:-

• Click “Extrude” icon


• (The Sketch Plane, xy Plane will be automatically selected as Direction)

• Enter 20mm as Limit.1

• Enter 20mm as Limit.2


(12) To Split Surface:-


• Select Fillet.1 as Element to cut

• Select Extrude.1 as Cutting element

• (Click “Other Side” option to choose the bigger

portion)


• Hide Extrude.1 & Sketch.5

Generative

Shape Design

Exercise 2

115


(13) To make a Symmetry:-

• Click “Symmetry” icon

• Select Split.2 as Element

• Select zx Plane as Reference


(14) To visual-check the tangency continuity along the interface:-

• Click “Shading” icon

• (All black surface edges now disappear)

• Check if any sharp edge appears along the

centre interface. If yes, go back to previous

step(s) to correct the error.

(15) To Join Surfaces:-

• Click “Join” icon

• Select Split.2 and Symmetry.2 as

Elements to Join


• (Split.2 & Symmetry.2 will be hidden

automatically)

Generative

Shape Design

Exercise 2

116


(16) To make a Solid:-

• Start/Mechanical Design/Part Design

• Click “Thick Surface” icon

• Click ok on the pop-up warning window

• Select Join.1 as Object to Offset

• Enter 2mm as First Offset

• (If the red-arrows are not pointing inward, click “Reverse Direction” or directly click on an arrow to change the direction)


• Hide Geometrical Set.1

(17) To add Fillets onto the solid:-

• Click “Edge Fillet” icon

• Select all sharp edges

• Enter 0.5mm as Radius


Generative

Shape Design

Exercise 2

END of Exercise.2117

CATIA V5 Generative Drafting118

CATIA V5 Generative Drafting

Version 5 Release 17

Drafting

Generative Drafting

118


Drawing Management

To enter the Drafting workbench and start a new drawing:-

Select File -> New (or click the New icon). The New dialog box is displayed, allowing you to choose the type of the document you need. Select Drawing in the List of Types field and click OK. OR Select Start -> Mechanical Design from the menu bar. Select the Drafting workbench. OR Select Start -> Drafting from the menu bar. The New Drawing dialog box is displayed, allowing you choosing the type of Standard, Sheet Style, Orientation you need. The sheet style defines among other things the sheet format, scale and orientation.

Select the required standard and click the Landscape or Portrait option.

Generative Drafting

119


120

Make sure you customized the units accordingly. For this:

1. Select the Tools -> Options command to display the Options dialog box.

2. Click General > Parameters and Measure in the list of objects to the left of the Options dialog box.

Select the Units tab and set Length to mm and then click OK.

Save As: Exporting a Drawing

CAT Drawing file can save in the following formats:

.CATDrawing, .cgm, .svg, .gl2, .ps, .catalog, .pdf, .tif, .jpg, .dxf, .dwg, .ig2 (2D IGES), .3dxml

Importing From Files You can import the following formats:

.3dxml, .dwg, .dxf, .cgm, .ps, .hpg, .svg, .pdf

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121

Sheets Modifying a Sheet & Deleting a Sheet Switching to Another Standard

Views Creation Projections

Front view: Use a reference plane on the 3D part to create a front view.

View from 3D: Generate a view and the associated annotations from the 3D.

Projection views: Generate the projection views as desired.

An auxiliary view: Define a plane that will be used to generate the auxiliary view.

Isomeric view: Create an isometric view using a 3D part.

Advanced front view: Create advanced front views to configure such elements as the view name, view scale,

etc.

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122

Sections Offset section view: Use a cutting profile to define and position the offset section view.

Aligned section view: Use a cutting profile to define and position the aligned section view.

Offset section cut: Use a cutting profile to define and position the offset section cut.

Aligned section cut: Use a cutting profile to define and position the aligned section cut.

Detail view

Detail view: Use a callout to create a detail view via a boolean operator from the 3D.

Detail view profile: Use a polygon to create a detail view via a boolean operator from the 3D.

Quick detail view: Callout to create a detail view by computing the view directly from 2D projection.

Quick detail view profile: Polygon to create a detail view by computing the view from 2D projection.

Clipping view

Clipping view: Callout to create a clipping view via a boolean operator from the 3D.

Clipping view profile: Callout to create a clipping view by computing the view directly from 2D projection.

Quick clipping view: Create a quick clipping view with a circle as callout.

Quick clipping view profile: Create a quick clipping view with a sketched profile as callout.

Generative Drafting


123

Break views

Broken view: Create a broken view from an active and up to date generative view using two profiles

corresponding to the part to be broken from the view extremities

Breakout view: Remove locally material from a left generated view, to visualize the remaining visible internal part.

3D clipping: Clip a view by selecting in the 3D object the useful part.

View Modification

Move a view: Drag a view to a new location.

Position a view: Position Generative or Interactive views either by aligning them, superposing them and setting relative

view position.

Position a view independently of its reference view: Position a view independently of its reference view.

Locate reference/resulting views: Navigate easily between reference/resulting views in the case of section views,

section cuts, auxiliary views or detail views.

Isolate generated views: Remove associativity between an existing CATPart (or CATProduct or CATModel) and the

corresponding generated views.

Restore Overloaded Properties/Deleted elements: Restore 3D graphical dress-up and/or generated elements

that have been deleted from a view.

Lock a view: Use the contextual menu (Properties option) to lock a view.

Scale a view: Modify the scale of a view.

Rename a view: Give a new name to an existing view.

Modify a view projection plane: Modify the projection plane of any generated view.

Add a generative bill of material: Insert Bill of Material information into the active view.

Generating balloons on a view: Generate balloons on the active view.

Show geometry in views: Visualize geometrical elements in all viewpoints as well as in a 3D viewer corresponding to

the views analyzed.

Generative Drafting


124

Modify a callout graphism: Modify the graphical attributes of one or more callout used when generating auxiliary,

section or detail views.

Modify a callout geometry: Modify the geometrical properties of a callout used when creating detail views, section

views and section cuts.

Overloading element properties: Overload the properties of generated elements in a view.

Modify a pattern: Modify the pattern of a view and apply a material to this pattern.

Duplicating generative geometry: Duplicate a generative view sub-element in order to modify a generated view sub-

part independently from the part linked to the drawing.

Modify a view's links: Modify the list elements pointed by a view.

Apply a view's links to another view: Apply the links of a view to another one.

Generative View Styles

Create views using generative view styles.

Switch a view to another generative view style: Switch a view which uses a given generative view style to another

style.

Apply the generative style of a view to another view: Apply the generative view style used to create a given view

to another view.

Apply a generative view style to a view: Apply a generative view style to a view which was created without one.

Dimension Generation Generate dimensions in one shot: Generate dimensions in one shot from the constraints of a 3D part

(distance, length, angle, radius and diameter constraints).

Generate dimensions semi-automatically: Generate dimensions step by step from the constraints of a 3D

part (distance, length, angle, radius and diameter constraints).

Generative Drafting


125

Dimension Manipulation

Dimensions/ half-dimensions: Create dimensions by clicking elements.

Chained dimension:

Cumulated dimension system on a view

Stacked dimension system on a view Explicit dimensions: Create dimensions using explicit selection both of the desired icon and of the required

geometrical elements.

Chamfer dimensions: Create a chamfer dimension using selection.

Associative thread dimensions: Create associative thread dimensions.

Coordinate dimensions: Automatically create coordinate dimensions on elements.

Holes dimensions table: Create a table containing holes dimensions (diameter and center coordinates).

Points coordinates table: Create a table containing 2D and 3D points coordinates.

Dimension edition

Re-route dimensions: i.e. recalculate dimensions taking into account new geometry elements.

Interrupt one or more extension lines: Interrupt manually one or more extension lines of one or more

dimensions.

Generative Drafting


126

The options in the Tools Palette allow you to position the dimension using one of the above indicated modes.

Tolerance

Datum feature: Use the Datum Feature Creation dialog box to create a datum feature.

Geometrical tolerance: Use the Geometric Dimensioning and Tolerancing Parameters dialog box to create

geometrical tolerances.

Annotations Text

Free text: Create a text that either wraps or not, that is assigned an unlimited width text frame, even though this text

may reach the frame boundary

Text with a leader: Create a text with a leader either in the free space or associated

Text to be replicated

Create a balloon: Create a balloon using a dialog box.

Create a datum target: Create a datum target on a view.

Symbols

Roughness symbol: Create a roughness using a dialog box.

Welding symbol: Create a welding symbol using a dialog box.

Geometry weld: Create a geometry weld symbol.

Generative Drafting


127

Table

Create/modify a table: Create, edit and modify a table.

Insert table from the file

Dress-Up Elements

Arrows: Create an arrow.

Axis & threads

Center lines (no reference): Apply a center line to one or more circles.

Center lines (reference): Apply a center line to one or more circles with respect to a reference (linear or circular).

Threads (no reference): Create a thread without a reference.

Threads (reference): Create a thread with a reference, either circular (circle or point) or linear (line).

Axis lines: Create an axis line by selecting lines.

Axis lines and center lines: Create an axis line by selecting lines.

Fill areas

Area-fill: Create an area fill, i.e. a closed area on which you will then apply graphical dress-up elements called

patterns (these can be hatching, dotting or coloring). Patterns can be applied to area fills created from both sketched and generated elements.

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128

Properties

Edit sheet properties: Access and edit sheet properties.

Editing view properties: Access and edit view properties.

Editing 2D geometry feature properties: Access and edit information on 2D geometry features (name and stamp).

Editing 2D element graphic properties: Access and edit graphic properties.

Edit pattern properties: Access and edit pattern properties.

Editing annotation font properties: Access and edit annotation font properties.

Editing text properties: Access and modify text color, position and/or orientation.

Editing picture properties: Access and modify picture position, size, scale and compression.

Editing dimension text properties: Access and edit dimension text properties.

Edit dimension font properties: Access and edit dimension font properties.

Editing dimension value properties: Access and edit dimension value properties.

Editing dimension tolerance properties: Access and edit dimension tolerance properties.

Editing dimension extension line properties: Access and edit dimension extension line properties.

Editing dimension line properties: Access and edit information on dimension line properties.

Editing dimension system properties: Access and edit information on dimension system properties.

Editing 2D component instance properties: Access and edit 2D component instance properties.

Editing callout properties: Access and edit the callout properties.

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129

Printing

Generative Drafting