拉深件毛料外形的計算機輔助模擬與實驗驗證

Computer-Aided Modeling and Experimetal Verifications of Blanks in Irregular Deep Drawing

摘要: 匯場法已被證明是一種可行的理論方法。本文進一步研究了它對平面異形拉深零件外形的自動處理,繪出了自動繪制出的異形件毛料外形,用拉深實驗檢驗了匯場法自動確定的幾件典型零件毛料外形。在此基礎上,提出了匯場法對設置拉深凸埂的指導作用,同時指出匯瘍法確定毛料外形的精度可通過匯強的調整來改善。

Abstract: The Sink Field Method（SFM） has been shown to be an acceptable theoretical method for blank development. The autosegment of the outline of a irregular drawn part is investigated in detail in SFM.
The blank contours of some irregular drawn parts are given, which are autotracked with the help of SFM computer program.The blank contours of some typical drawn parts autotracked by SFM are tested with drawing process. Based on the test results, guiding function of SFM for arranging drawing beads is discovered, and the accuracy of SFM for blank development is shown theoretically to be improved by adjusting the sink distribution.