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punch press |
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punch pressMachine tool that changes the size or shape of a piece of material, usually sheet metal, by applying pressure to a die in which the workpiece is held. The form and construction of the die determine the shape produced on the workpiece. A punch press has two components: the punch, which is attached to the reciprocating (back and forth, or up and down) ram (plunger) of the machine; and the die, which is clamped onto a bed or anvil whose flat surface is perpendicular to the path of the ram. The punch pushes against the workpiece, which is held in the die. Punch presses are usually driven by electric motors. See also hydraulic press. punch press [′pənch ‚pres] (mechanical engineering) A press consisting of a frame in which slides or rams move up and down, of a bed to which the die shoe or bolster plate is attached, and of a source of power to move the slide. Also known as drop press. Any mechanical press. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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| By 1964, Goldman had moved to a new 6000-sq-ft location and had three vacuum formers and two punch presses. The profile portion of the business involves the use of a CNC Plasma Cutter, punch presses and brake press machines. 17, 1994, they found its roof lay in sections, strewn across the shop's punch presses, lathes and grinders - obscuring its wares: high-tech bolts used in jet engines. |
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