| 释义 |
punch pressnounA press that is designed to drive a punch for shaping metal.The most modern line of punch presses and press brakes ensures high quality and maximum flexibility....- Designed to require no expensive castings, it could be made by countries with limited industrial capability using punch presses and automatic screw machinery to produce rifles made largely of sheet metal stampings.
- In toggle draw, the sheet is placed over a cavity, a toggle-driven upper binder ring comes down, and a punch presses the metal into the cavity.
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