sheet metal design ( ii ) sheet metal feature

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1 Sheet Metal Design ( II ) Sheet Metal Feature Hong RuJin September , 5, 2000

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Sheet Metal Design ( II ) Sheet Metal Feature. Hong RuJin September , 5, 2000. Sheet Metal Bead Features. A Sheet Metal Bead is a protrusion or depression that can be created on planar or non-planar faces of sheets or solids. Beads are associative features. - PowerPoint PPT Presentation

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Page 1: Sheet Metal Design ( II ) Sheet Metal Feature

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Sheet Metal Design ( II )Sheet Metal Feature

Hong RuJin September , 5, 2000

Page 2: Sheet Metal Design ( II ) Sheet Metal Feature

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A Sheet Metal Bead is a protrusion or depression that can be created on planar or non-planar faces of sheets or solids. Beads are associative features.

The overall bead shapes are controlled by centerline paths.

Cross section shapes:

Beads are useful in the design of sheet metal products to add strength to the product or to control the formability of the material during metal stamping operations. Beads can be created as a part of the body they are on, or as a separate feature

Sheet Metal Bead Features

Smd_bead.prt

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Note:

End Cap is only available for U_Shape and V_shape cross , Option Includes_Start/End/Both.

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End Cap

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Sheet Metal Punch Features The Sheet Metal Punch can be used to model both emboss and coin operations across multiple, adjacent placement faces.

You can use open and closed profiles that intersect the periphery of the part.

Top types that are available are offset, flat, round, and cone.

•If you use the Coin punch, then you will not be able to specify the top type, die radius, taper angle, punch radius, cone depth or punch direction. The depth of the coin cannot be greater than the thickness of the sheet.

•If you use the Emboss type, then you can specify the top type, die radius, taper angle, punch radius, cone depth, and punch direction.

• Punch type

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If Offset is used, the punch will follow the contours of the placement face.

The Flat option creates a punch with a flat top as evaluated perpendicular to the punch direction vector.

If the placement outline is a closed circle, you can create a Round or Cone shaped top for the punch.

• Top type • Punch Direction

Auto Centroid Creation_To create an automatic tool center point ( Centroid) based on a 2D analysis of the placement outline curves.

Flanged Cutout_To create a flanged cutout ( or drawn cutout or flanged hole ) in lieu of the emboss or coin punch Smd_seedpart.prt

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Sheet Metal Hole Features A Sheet Metal Hole is a circularly shaped hole that can be created through any type of face. The hole will form and unform itself to the underlying surface.

You can create Punch, Through, or Depth (specified) hole types. Sheet Metal Holes can be created across one or more faces.

• Punch is the option you will use most of the time. It requires a placement face and two edges to be specified. A punch SMHole pierces one thickness of the solid body.

• Through, which is rarely used, requires a placement face, two edges, and a second face to which the SMHole will extend. The Through hole type pierces all faces and bodies in its path between the placement face and the through face. The length and width of through SMHoles are associative to the first SMHole.

• Depth, which is rarely used, requires a placement face, two edges, and a depth value.

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Edit Feature Parameter

Unform & SM-Hole

Form & Edit

Smd_smdhole.prt

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Form All

After edition

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Create Through Hole

Change Modeling Hole To Sheet Metal Hole.

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Sheet Metal Slot Features

A Sheet Metal Slot is shaped like a rectangular slot, but one that can be created and positioned from an edge of any face. The placement face does not have to be planar. The sheet metal slot will form and unform to the underlying surface.

You can create the slot as a punch, through, or specified depth slot. The slot can cross multiple faces.

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Smd_smdslot.prt

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Sheet Metal Cutout FeaturesA Sheet Metal Cutout is a hole with a shape that is controlled by a specified outline of curves. The cutout can be created on any face, and can cross multiple faces. The placement face does not have to be planar.

As with other sheet metal features, the sheet metal cutout will form and unform to the underlying surface.

Smd_buttjoint.prt

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Sheet Metal Bracket

The sheet metal Bracket is a utility you can use to create a bracket from reference geometry. It is a collection of features.

Each bracket consists of a Base Pad, created by an Extrude feature and a Flange or General Flange feature built off the Base Pad. One or more Sheet Metal Cutout features then trim the flange to size. The Sheet Cutout is built to match input reference points. The resulting bracket will align with the reference geometry.

Base Face

Reference Face

Base Pad

FlangeSmd_bracket.prt

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Terminology

• Base Pad_The portion of the resulting solid body upon which a flange is built. The Base Pad is constructed using an Extrude feature.

• Clearance Points_Points on the Base Face and / or Reference Face used to define the outline of the bracket.

• Clearance Circles_ The selection of Points or Arc Centers causes the system to define a Clearance Circle for each selection. The radius of each circle is determined by the Clearance Distance.The system will construct the Base Pad outline tangent to the Clearance Circles.

• Intersection Curve_ This curve is the intersection of the of the Base Face and the reference Face. If the plane and face do not physically intersect, the Base Face plane will be extended to meet the Reference Face plane.

Clearance Points

Clearance Circles

If the intersection curve 1s linear, a Flange feature is constructed, If the intersection curve is non_linear, a General flange is constructed.

The initial bracket width is the length of the intersection curve.

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Note:The Pad Length / Flange Length are only used if no Base / Reference Clearance Point geometry is selected.

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Copy Feature: ( simple Holes ) Paste Feature: ( simple Holes )