Transactions of Materials and Heat Treatment

Title：Wrinkling Forecast for Multioperation Drawing ofCylindrical Shell Without Pressure Ring

Authors： Yantai University Lei Junxiang LiLi

Unit：

KeyWords： Multioperation drawing Wrinkling forecast Wrinkling critical curve Power hard-ening material

ClassificationCode：TG356.55

year,vol(issue):pagenumber：1994,19(5):0-0

Abstract：

On the basis of constructing wrinkling models, the wrinkling critical tangent pressureformula for multioperation drawing of cylindrical shell without a pressure ring was calculated by thecompression plasticity unstability critical load formula, and further the nowrinkling judgment formulaas well as the wrinkling critical curves are given. By means of the experiment test and the contrastedanalysis, it was proved that the wrinkling judgment formula or the wrinkling critical curves were useddirectly to the drawing wrinkling forecast in the actual productions, and the forecast precision and reli-ability are very higher.

Funds：

Reference：

［1］雷君相，圆筒形件初拉深不用压边时的皱曲分析．陕西工学院学报（自然科学版）1992vol．8No．2第68～77页。
［2］雷君相．圆筒形件多次拉深不用压边时的皱曲判定，陕西工学院学报（自然科学版）1993年第1期，第78～87页。
［3］雷君相，李笠．圆筒形件不用压边拉深时的皱曲预报．（待发表）
［4］余同希，章亮炽，塑性弯曲理论及其应用、科学出版社，1992年，第10章。
［5］王孝培．冲压手册（修订本），机械工业出版社，1988年，第201页表4－16。

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