最主要是工件太长,而且半径处不能留有中心孔,这样的话没有顶针顶着,加工的时候会出现抖动.直径40和30两处要同心。60处是四方形不是圆的。
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[此贴子已经被作者于2004-1-12 12:44:41编辑过]
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