Metal Stamping Glossary

With 50+ years of metal stamping experience, Service Stampings is a trusted source for stampings, as well as of information and advice for its customers.

 

We're pleased to offer a glossary of metal stamping terms as a service to our customers and others in the industry.

 

If you're looking for an experienced, knowledgeable metal stamping provider, you're looking for Service Stampings. Contact us now to put our expertise to work on your next project.

 

Annealing: Softening or strain relieving of material by application of heat above the critical temperature for the correct time interval, then cooling slowly enough to avoid hardening.

 

Bead: a. Narrow ridges in a part for reinforcement. b. Narrow ridges along the edge of a part and corresponding ridges in the die to improve holding action in press operations.

 

Blank: The piece of sheet material, usually flat, produced in cutting dies, usually subjected to further press operations.

 

Blank Development: The stretching and ironing present in drawing and forming operations usually mean that the blank size and shape must be created through trial and error. The drawing and forming dies, therefore, are made first, and, when the blank size and shape are finally determined, the blanking die is made last.

 

Blanking Die: Die used for shearing or cutting blanks usually from flat sheets or strips. The single blanking die used for producing one blank at each stroke of the press is the simplest of all dies, consisting essentially of punch, die block and stripper.

 

Brake Bending or Press: A form of open frame, single-action press comparatively wide between the housings, with bed designed for holding long narrow forming edges or dies. It is used for bending and forming strips and plates.

 

Burr: A rough ridge, edge, protuberance or area that is left on metal after cutting, drilling, punching, etc.; in stamping, burrs occur in cutting dies because of the clearance between punch and die.

 

Burr Side: This generally refers to the side or face of a blank or other stamping which comes in direct contact with the punch in a blanking operation, and the side or face of a blank or other stamping which comes in direct contact with the die in piercing or perforating operations

 

Coining: A squeezing operation, usually performed cold in a closed die, in which the metal is forced to flow to fill the shape and profile of the dies. The term is also applied loosely to other very severe and localized cold forming operations. Usually performed in a Knuckle Joint or Coining Press.

 

Cold Rolled Sheets: Steel sheets processed to produce a surface superior to a hot rolled, pickled finish. Hot rolled sheets or coils are pickled, cold reduced in thickness and usually annealed, temper or skin-rolled and level-rolled.

 

Combination Die: Press tool for doing two or more operations at each stroke of the press, one performed inside the other. They are most frequently blanking and drawing operations.

 

Compound Die: a. Tool for cutting two operations, one performed inside the other, e.g., die for blanking and piercing a washer. b. Die in which blanking, forming or drawing operations are combined.

 

We'll be adding more terms shortly. Make sure to bookmark this page and come back for future installments.

 

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