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针对武钢棒材厂高硬度轧辊孔型加工困难的问题,对车床进行了改造,重新设计了刀具,且对数控车床轧辊孔型加工工艺进行优化,取得了良好的效果。“,”In light of the difficulties of pass machining of the high hardness roll in the plant, the lathe is modified and the cutting tool is redesigned, the pass machining process for the digit controlled lathe is optimized as well. Very good results have been a-chieved in the end.