Abstract: The relevant results of thermodynamics simulation test, recrystallization study and FEM numerical simulation are
described. A method is also introduced that the controlled hot
forming is carried out by adopting the program of
expansion-extrusion compound forming.
Key words: Retaining
ring Expansion-extrusion compound forming Controlled hot forming
*
This project
is supported by Provincial Natural Science Foundation of Shanxi.
Manuscript received on October 19, 1998; revised manuscript December
2, 1998
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