VBHF - What does VBHF stand for? The Free Dictionary
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So we must emphasize that we are developing VBHF for the combination of bending and deep drawing operations of metal sheet forming.
Latter we develop an equation of VBHF for the chosen analysis model.
The mentioned curves represent VBHF versus punch displacement.
The main idea of VBHF is to reduce maximum material stiffness in order to avoid excessiveness of strength of material fatigue.