China United Mould

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Metal Stamping

Presswork

Metal stamping for consistent parts in volume

Metal stamping forms sheet or coil between a punch and a die in a press. Each stroke makes a part, or moves the strip one station on, so once the die is paid for the cost per part is low. It is the usual route for brackets, clips, terminals, shields and drawn cups in large quantities.

Our presswork covers blanking and punching, forming and bending in the die, deep drawing, stretch forming and roll forming. Stamping dies are designed and built in our own tool room. Whether a part runs in a single-station, compound or progressive die depends on its shape, its tolerances and the annual quantity.

Coil-fed progressive die stamping press with light curtains and stamped parts
Sheet metal enclosure, chassis, brackets and welded stainless steel parts

Stamping processes

Metal stamping at a glance (typical)

ProcessesBlanking, punching, forming, progressive die stamping, deep drawing, stretch and roll forming
Die typesSingle-station, compound and progressive dies, chosen by part shape and annual quantity
ToolingStamping dies designed and built in our own tool room
MaterialsSteel, stainless steel, aluminum, copper, brass and spring steels in sheet or coil
Typical partsBrackets, clips, terminals, washers, shields, drawn cups and housings
SecondaryTapping, welding, plating, heat treatment, assembly

Metal stamping FAQ

When does stamping beat laser cutting and bending?

When the quantity pays for the die. A stamping press makes a part with every stroke, typically many per minute, while laser cutting and bending need no die and win for prototypes and small batches. The break-even depends on the part, so for borderline quantities we can price both routes.

What is a progressive die?

A die with several stations in a row. The coil strip advances one step with each press stroke, each station does one operation, and a finished part leaves the last station. It suits small parts in large quantities.

Have a drawing ready? Send it for a quotation.