通过对矿用电铲提升卷筒上的螺旋钢丝绳槽的数控加工工艺改进前与改进后的比较，分析了各自的优缺点，并详细介绍了改进后的数控工艺过程。
By comparing the unimproved CNC machining technology to the improved CNC machining technology of mine electric shovel upgrade spiral wire groove on the drum ,we analyzed the advantages and disadvantages, and gave details of the improved CNC process.
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