拉中拉深壁

1、拉中拉深壁起皺的分深模設(shè)計析 F K C 灣大學(xué)機械設(shè)計研究所 在帶有斜度的方形盒和帶有階梯的方形盒的拉深中發(fā)生的起皺現(xiàn)象一直在被研究。這兩中類型的起皺現(xiàn)象有一個共同的特征：全都發(fā)生在相對無支撐、無壓邊的拉深壁處。在帶有斜度的方形盒的拉深中，常受到工序參數(shù)的影響，例如：模具的間隙值和壓邊力等，所以常用有限元模擬的方法來研究分析起皺的發(fā)生。模擬的結(jié)果表明模具的間隙值越大，起皺現(xiàn)象就越 嚴重，而且增加壓邊力也不能抑制和消除起皺現(xiàn)象的發(fā)生。在帶有階梯的方形盒拉深的起皺現(xiàn)象分析中，常通過實際生產(chǎn)中一種近似的幾何。

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3、拉中拉深壁起皺的分深模設(shè)計析 F K C 灣大學(xué)機械設(shè)計研究所 在帶有斜度的方形盒和帶有階梯的方形盒的拉深中發(fā)生的起皺現(xiàn)象一直在被研究。這兩中類型的起皺現(xiàn)象有一個共同的特征：全都發(fā)生在相對無支撐、無壓邊的拉深壁處。在帶有斜度的方形盒的拉深中，常受到工序參數(shù)的影響，例如：模具的間隙值和壓邊力等，所以常用有限元模擬的方法來研究分析起皺的發(fā)生。模擬的結(jié)果表明模具的間隙值越大，起皺現(xiàn)象就越 嚴重，而且增加壓邊力也不能抑制和消除起皺現(xiàn)象的發(fā)生。在帶有階梯的方形盒拉深的起皺現(xiàn)象分析中，常通過實際生產(chǎn)中一種近似的幾何。

4、 2002) 19:253259 2002 in a in of is A of of is at is In of a as on of is is be by In of in a an a of at to of An of is in of of is of in in a of in of to In of a 14, 0617. in in is by is of It is of in be in by of to by a to on on of to in of a a a of to of et 1 a in a of an in of is to in Yu et 2,3 to 4of it to to on of a In 990s, D to it to in In D to of on at in of a of a as 1(a), an on of to is is 1. a) a b) a to In of on In of a as 1(b),of is In to of an in of an to by on an AD to A。