Abstract:
Stresses and deformation states of pipe bending are investigated
under loading or unloading with various pipe materials, size,
bending radius and deformation temperature. A theorem of
springback of large diameter pipe bending is presented. The
experiments are carried out with pipe materials of 20, 10CrMo910
and 12CrMoV steel. Results of computations are in good agreement
with experiments.
Key words: Pipe
bending Springback Induction heating Theory of plasticity Metal
forming
Manuscript received on
March 17, 1997; revised manuscript June 28, 1997
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