WANG Chunrong SONG Hailong QU Li CAO Shuzhi Institute of Metal Research
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Academia Sinica
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Shenyang
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China WANG Chunrong Associate Professor
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Institute of Metal Research
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Academia Sinica Shenyang 110015
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China
金属学报(英文版)
A proposal for two types of press close to die,including blank coming in die and Blank cov- ering die,and four criteria for formability is put forward in the study of the superplastic air bulge forming of the metallic thin wall components.A dimensionless weigh mathematic model for the criteria of superplastic air bulge forming is developed to be: Q_w=1.56(WS)/(HF)+2.37(0-(?)π/(180)-r/(r_0)+0.19 The superior formability of components is approaching,if Q_W≥1,and the worse,if Q_W<1.It was confirmed by practice that the above mentioned model is accurate sufficiently.
关键词:
superplastic air bulge
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