8. CUT-OFF
TOOL
CUT OFF OPERATIONS ARETHOSE INWHICH STRIP OF
SUITABLEWIDTHIS CUTTO LENGTH IN A SINGLE
OPERATION.
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9. PARTINGOFF
IT IS SIMILARTO CUT OFF OPERATIONEXCEPTTHE CUT IS IN
DOUBLE LINE.
THIS IS DONE FOR COMPONENTSWITHTWO STRAIGHT
SURFACESANDTWO PROFILED FACES.
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10. TRIMMING
TOOL
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When cups and shells are drawn from flat sheet metal the edge is left
wavy and irregular, due to uneven flow of metal. Shown is flanged
shell, as well as the trimmed ring removed from around the ed ge.
While a small amount of Material is removed from the side of a
component in trimming tool.
11. PIERCING
TOOL
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Piercing involves cutting of clean holes with a resulting scrap slug.
The operation is called die cutting and can also produce flat
components where the die, the shaped tool, is pressed into a sheet
material employing a shearing action to cut holes. This method can
be used to cut parts of different sizes and shapes in sheet metal,
leather and many other materials.
12. SHAVING
TOOL
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Shaving removes a small amount of material around the edges of a
previously blanked stampings or piercing. A straight, smooth edge is
provided and therefore shaving is frequently performed on instrument
parts, watch and clock parts and the like. Shaving is accomplished in
shaving tools especially designed for the purpose.
16. BENDING
TOOL
Bending is a manufacturing process that produces aV-shape,U-
shape, or channel shape along a straight axis in ductile materials,
most commonly sheet metal
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17. FORMING
TOOL
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Forming is the operation of deforming a part in curved profile. Forming
tools apply more complex forms to work pieces. The line of bend is
curved instead of straight and the metal is subjected to plastic flow or
deformation
18. DRAWING
TOOL
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Drawing tools transform flat sheets of metal into cups, shells or other drawn
shapes by subjecting the material to severe plastic deformation. Shown in fig
is a rather deep shell that has been drawn from a flat sheet.
