Sheet Metal Forming Processes Manufacturing Processes.

Sheet Metal Forming Sheet Metal Forming ProcessesProcesses

Manufacturing Manufacturing ProcessesProcesses

OutlineOutline

IntroductionIntroduction

ShearingShearing

BlankingBlanking

BendingBending

Deep DrawingDeep Drawing

Stamping DiesStamping Dies

Progressive DiesProgressive Dies

Transfer DiesTransfer Dies

SpinningSpinning

Sheet Metal WorkingSheet Metal Working

Products:Products:

automotive fendersautomotive fenders

washerswashers

stamped partsstamped parts

channelschannels

Examples of Stamped Examples of Stamped PartsParts


This part was made from several stamped parts plus a nut, which were stamped again to seal them

together


This part was made from a sheet that was stamped, bent, and welded into a tube, plus a separate

stamped end piece

ShearingShearing

A sheet-metal cutting operation along A sheet-metal cutting operation along a straight line between two cutting a straight line between two cutting edgesedges

Shearing of Metal Shearing of Metal Between Cutting EdgesBetween Cutting Edges

Shearing of Metal Shearing of Metal Between Cutting EdgesBetween Cutting Edges

1/3 of material is cut and 2/3 of material fractures

BlankingBlanking

Involves cutting the sheet metal along Involves cutting the sheet metal along a closed outlinea closed outline

Piercing and BlankingPiercing and Blanking

Shearing operations in which the Shearing operations in which the shear blades are closed, curved shear blades are closed, curved lines along the edges of the punch lines along the edges of the punch and dieand die

In blanking, the piece punched out is In blanking, the piece punched out is the workpiece; in piercing, the the workpiece; in piercing, the remaining strip is the workpieceremaining strip is the workpiece

Punch and DiePunch and Die

BendingBending

Bending SpringbackBending Springback


A sheet metal forming operation used A sheet metal forming operation used to make hollow-shaped partsto make hollow-shaped parts

RedrawingRedrawing

Additional drawing steps (redrawing) Additional drawing steps (redrawing) may be required if the shape may be required if the shape change of the material is too severechange of the material is too severe

Example of a Drawn Example of a Drawn PartPart

Example of a Deep Example of a Deep Drawing PressDrawing Press

Stamping DieStamping Die

Progressive DieProgressive Die

Performs multiple operations at Performs multiple operations at different stations with every press different stations with every press strokestroke

Example of Progressively Example of Progressively Stamped PartsStamped Parts

This sheet has been stamped by a progressive die, showing the series of operations from right to left

Examples of Stamping Examples of Stamping MachinesMachines

Progressive DieProgressive Diein Stamping Pressin Stamping Press

Material CoilsMaterial Coils

Material FeedMaterial Feed

Transfer LineTransfer Line

Transfer PressTransfer Press

Transfer DieTransfer Die

SpinningSpinning

Uses a spinning mandrel and a roller Uses a spinning mandrel and a roller to form sheet metal into a radially to form sheet metal into a radially symmetrical partsymmetrical part

SpinningSpinning

Courtesy Koch Metal Spinning

Tube SpinningTube Spinning

Uses a spinning mandrel and a roller Uses a spinning mandrel and a roller to reduce the wall thickness and to reduce the wall thickness and increase the length of a tubeincrease the length of a tube

SummarySummary

Blanking, bending, and deep Blanking, bending, and deep drawing are capable of drawing are capable of producing an immense variety producing an immense variety of thin metal partsof thin metal parts

Progressive dies can produce Progressive dies can produce parts at high production rates parts at high production rates by performing multiple by performing multiple operations simultaneouslyoperations simultaneously

Sheet Metal Forming Processes Manufacturing Processes.

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