Prediction and solution of wrinkling of flange holder corresponding to the position of parts
The local position of the blank holder corresponding to the part appeared wrinkles in the deep drawing process,which affected the service life of the blank holder and the die.The theoreti-cal blank holder force could not make the blank holder and the upper half of die close stably,re-sulting in a large difference between the material inflow value and the theoretical value.Based on the analysis results of CAE software,the wrinkling area was pre-judged,and the wrinkling problem was solved before die processing.
NETL
NSTL
万方数据
维普
