punch

tool

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Last updated

July 13, 2026

Quick Summary

A punch is a tool, typically made of steel, used for various operations like forming, perforating, embossing, or cutting materials, especially sheet metal. It works in conjunction with a die, where the punch is attached to a reciprocating ram and pushes against the workpiece held in the die. This process can create holes, notches, or change the size and shape of materials. The term "punch" can also refer to the hole or notch created by this operation. Additionally, "punch" can be used as a verb, meaning to deliver a blow or to make a hole.123

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Techniques of production
…by stamping them with a punch—a naillike piece of metal, probably of bronze or iron. The punch sometimes had a crudely fractured end surface (which, of course, would be unique), sometimes an engraved design (the latter produced on the punch by drilling with abrasive corundum dust, which ate away at…
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…by stamping them with a punch—a naillike piece of metal, probably of bronze or iron. The punch sometimes had a crudely fractured end surface (which, of course, would be unique), sometimes an engraved design (the latter produced on the punch by drilling with abrasive corundum dust, which ate away at…
Read More

tool and die making
…consists of two sections, called punch and die, or male and female. Both sections are mounted firmly in an electrically or hydraulically driven press. In a working cycle the press ram, on which the male section is mounted, descends into the fixed female section. Any metal interposed between the sections…
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…consists of two sections, called punch and die, or male and female. Both sections are mounted firmly in an electrically or hydraulically driven press. In a working cycle the press ram, on which the male section is mounted, descends into the fixed female section. Any metal interposed between the sections…
Read More