OF STRETCHING TECHNOLOGICAL PARAMETERS

b_t/h AND b_b/h OF HEAVY FORGINGS*

Wang Leigang  Liu Zhubai  Deng Dongmei

  College of Mechanical Engineering, Yanshan University

Abstract:  A three-dimensional finite-element simulation of stretching technological parameters of heavy forgings is performed by using ANSYS program. The law of internal stress distribution with different b_t/h tool width ratio) and different b_b/h(blank width ratio) is studied. Consequently, the critical tool width ratio (b_t/h)cr and blank width ratio (b_b/h)cr leading no bi-axial tension are obtained. It lays a credible foundation for designing reasonable stretching technology.

Key words: Stretching  Tool width ratio  Blank width ratio  Simulation

* This project is supported by Doctorate Foundation of Ministry of Education of China (No.96021603). Manuscript received on October 22, 2000; revised manuscript February 15, 2001

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