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此件材料是45#钢,外圆是φ75,孔是φ55H7,厚度是13,槽宽3,此件孔是要求与别的零件配合,外圆自由公差
我开始写工艺时,不加思索就是先车成品,后铣槽。实践证明是错了,因为开完槽后,此零件变形了,槽宽小了,孔也不圆了。
把工艺更改一下,外圆车成,孔留量1,然后上铣床锯开槽宽3,再回到车床,槽3里夹片卡外圆精车里孔φ55H7完成,这样就把孔变形的问题解决了。
[此贴子已经被作者于2004-6-1 23:19:49编辑过]
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