本文对数控车削纯镍时刀具的沟槽磨损问题，应用扫描电镜、电子探针、俄歇能谱仪等进行了探讨。
Using electronic sweep mirror, electronic prober and energy spectrum meter to investigate the groove shape wear of a cutting tool, while numerical controlled turning the pure nickle.
在减速时，油里面悬浮的颗粒排出排气筒，而不是积聚在活塞和环之间的沟槽内，这可以使环磨损减缓。
During deceleration, the particles suspended in the oil blow out the exhaust, rather than accumulating in the ring grooves between the piston and rings. This keeps the rings from wearing too much.
若切割环和眼睛板磨损不严重，切割环和眼睛板间距＜0.1mm，且它们之间无超过1mm的沟槽划痕，可用直接打水法。
If the cutting ring and eye wear plate is not serious, cutting ring and the eye plate spacing <0.1mm, and no more than 1mm between them in a trench scratches, water law can be used directly.
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