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Differentiate between punching and blanking.
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written 2.7 years ago by |
PUNCHING | BLANKING | ||
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Punching is a method of machining that includes removing scrap metal from a raw metal sheet. | Blanking is often mistaken with piercing as both procedures involve cutting raw metal holes. | ||
Punching is a metal working process that involves creating holes in a metal workpiece. | Blanking is a metal fabrication process where the final product is removed out of the larger metal sheet, and the remaining material is discarded as scrap. | ||
The material removed (punched out) is discarded, and the final product is the remaining material. | The final product is removed out of the larger metal sheet, and the remaining material is discarded as scrap. | ||
The main thing to remember is that punching in sheet metal typically produce a single hole. | The main thing to remember is that blanking outcomes in a single piece of sheet metal creating various metal components. | ||
Example: Punching a hole in a piece of paper (assuming the hole is the desired outcome). | Example: A cookie cutter used to cut out cookie from dough. Since the cookie is the desired product, it is blanking (cookie is the blank). |