prepared by associate prof. mohamed ahmed awad cairo, 2014 · slotting machines can simply be...

Prepared byAssociate Prof. Mohamed Ahmed Awad

Cairo, 2014

Prepared by Dr. Mohamed Ahmed Awad

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Shaper

The Shaper is a machine tool used primarily for:Producing a flat or plane surface which may be

in a horizontal, a vertical or an angular plane. Making slots, grooves and keyways. Producing contour of concave/convex or a

combination of these.

The Shaper is a machine tool used primarily for:Producing a flat or plane surface which may be

in a horizontal, a vertical or an angular plane. Making slots, grooves and keyways. Producing contour of concave/convex or a

combination of these.

Prepared by Dr. Mohamed Ahmed Awad

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Advantages of Shaper The single point cutting tools used in shapers

are inexpensive, these tools can be easilygrounded to any desirable shape.

The simplicity and ease of holding work, its easyadjustment, and the simple tool give the shaperits great flexibility.

Shaper set up is very quick and easy and canbe readily changed from one job to another.

Thin or fragile jobs can be convenientlymachined on shapers because of lower cuttingforces.

The single point cutting tools used in shapersare inexpensive, these tools can be easilygrounded to any desirable shape.

The simplicity and ease of holding work, its easyadjustment, and the simple tool give the shaperits great flexibility.

Shaper set up is very quick and easy and canbe readily changed from one job to another.

Thin or fragile jobs can be convenientlymachined on shapers because of lower cuttingforces.

Prepared by Dr. Mohamed Ahmed Awad

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Shaper limitations The shaper is unsuitable for generating flat

surfaces on very large parts because of thelimitations on the stroke and overhang the ram

Planer solved this problem by applying thelinear primary motion to the work-piece andfeeding the tool at right angles to this motion.

The primary motion is accomplished by a rackand pinion drive using a variable speed motor.Shaper limitations

The shaper is unsuitable for generating flatsurfaces on very large parts because of thelimitations on the stroke and overhang the ram

Planer solved this problem by applying thelinear primary motion to the work-piece andfeeding the tool at right angles to this motion.

The primary motion is accomplished by a rackand pinion drive using a variable speed motor.Shaper limitations

Prepared by Dr. Mohamed Ahmed Awad

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Process

Machine

WP holding devicesWP holding devices

Tool & Tool holding

OperationsPrepared by Dr. Mohamed Ahmed Awad

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Process cutting variables

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Cutting variables

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Shaper motions

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Single edge Cutting Tool

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Shaper tool

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Work holding devices

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Work holding

Same as milling and drilling havingthe same T slot table

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Machine Parts

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Simplified shaper

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Parts functions

Generate cutting speedRam1 Generate cutting speedRam1Carry out the ramColumn2Slide for feed motionCross rail3Work holdingWorktable4Carry toolTool head5carry machine parts and used to fix themachine

Base6

Adjust depth of cutTool head7

Prepared by Dr. Mohamed Ahmed Awad

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Working of machine

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Speed ratio in cutting andreturn stroke

Speed ratio in cutting and return stroke is 2 to 3

Prepared by Dr. Mohamed Ahmed Awad

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Cutting versus return stroke

Cutting stroke Effective cutting with chip removal Low speed

Return Stroke Idle without cutting Fast Speed

Cutting stroke Effective cutting with chip removal Low speed

Return Stroke Idle without cutting Fast Speed

Prepared by Dr. Mohamed Ahmed Awad

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PlannerPlaner is a machine with a cutting tool thatmakes repeated horizontal strokes across thesurface of a workpiece: used to cut flatsurfaces into metal

Planer is a machine with a cutting tool thatmakes repeated horizontal strokes across thesurface of a workpiece: used to cut flatsurfaces into metal

Prepared by Dr. Mohamed Ahmed Awad

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Slotter Slotting machines can simply be considered

as vertical shaping machine. Unlike shapingand planning machines, slotting machines aregenerally used to machine internal surfaces(flat, formed grooves and cylindrical).

Slotting machines can simply be consideredas vertical shaping machine. Unlike shapingand planning machines, slotting machines aregenerally used to machine internal surfaces(flat, formed grooves and cylindrical).

Prepared by Dr. Mohamed Ahmed Awad

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Prepared by Dr. Mohamed Ahmed Awad

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Shaper versus planner

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Shaper operations

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Shaper operations

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