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punch press

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punch press

Machine 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.


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It includes a turret punch press with punching force of 200 or 300 kN; a 2.
The new X5 hydraulic turret punch press from Finn-Power International Inc.
Byline: SIMON DUDMAN A COVENTRY telecommunications company has been fined pounds 7,500 and ordered to pay pounds 2,000 compensation after a worker climbed inside a punch press machine to free a sheet of metal and fell.
 
 
 
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