Abstract
This paper is concerned with a method of analyzing the process of tube sinking by a rotary die, modifying the method of finite elements. The components of the state of strain tensor have been determined for the conventional tube sinking process as well as a rotary die. It has been proved that the adoption of a rotary die does not essentially change the scheme of the state of strain, but that it does, however, reduce the drawing force. The results of theoretical analysis have been compared with those of experimental tests effected by means of a special device ensuring die rotation.
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