Abstract
A new method has been developed, as a consequence of analysis of plastic flow in the cold extrusion process of steel. As a result of experimental studies on the effects of tool shape, extrusion speed and heat treatment of work materials, it has been found that the extrusion pressure in this method is reduced by about 40% compared with the usual one. Moreover, the height of work piece has little effect on the extrusion pressure, so that deeper shells can be obtained without danger of buckling the punch. The duoble-action die has proved that this method can be applied to the production of various ferrous shells.
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Schedule a callMore From: TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series A
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