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Abstract: There are two rupture modes-rupture on the wall and at the
punch shoulder of the truncated conical parts in hydraulic
counter-pressure deep drawing. The upper bound chamber pressure-punch
stroke curve, under which none of the rupture modes happens, is obtained
by theoretical analyses and numerical simulation. That the rupture may
happen at punch shoulder at earlier stage of drawing and rupture on the
wall at later stages is indicated by the curves and validated by
experiments.
Key
words: Hydraulic
counter-pressure deep drawing Chamber pressure Rupture
CLC No: TG394
河北省自然科学基金资助项目(598265).
Received 20010309, received
in revised form 20010516
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