two-hole punch 中文意思是什麼
two-hole punch
解釋
兩眼打洞機-
General rules were validated and a new rule was discovered : i. e. the shape 0f these two stress fields are same, the equivalent stress of the round corner in the bottom reached its maximum at the first phase, the equivalent stress of the edge of hole reached its maximum at the third phase, the equivalent stress of flanging with cone - shaped punch descend more than that with column - shaped punch at the fourth phase i. e. the phase of deformation completed
驗證了一般規律，也發現了新規律，即兩者的應力場形狀相同，底部圓角處等效應力在變形第1階段最大，孔口邊緣處等效應力最大出現在變形第3階段，第4階段（變形終了時）錐形沖頭翻邊的等效應力比柱形沖頭翻邊時下降更大。
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