Procedure 5 semi finish turning Φ 100 end face and cylindrical surface, semi finish turning B surface, semi finish turning Φ 90 cylindrical surface, turning chamfer on Φ 100 and Φ 90 cylindrical surface, turning transition arc at both ends of Φ 45, turning chamfer at left end of Φ 20 hole<br>1. Semi finish turning Φ 100mm end face<br>The cutting parameters of rough and finish machining are the same except for feed and cutting depth, so it is omitted here.<br>Feed rate f = 0.5mm/r according to table 2.4-2 of practical machining process manual<br>
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