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介绍连续挤压用腔体的两个相同半径、不同圆心的偏心圆弧工作带在 Ｃ６５０ 车床上的加工。即利用一个专用夹具，同时加工四件腔体的偏心圆弧工作带。简介其加工方法的优越性。
Describe the continuous extrusion with the cavity of the same radius, different eccentric center of the circular arc belt in the C650 lathe processing. The use of a special fixture, while processing four cavities eccentric circular work belt. Brief introduction of the advantages of its processing methods.