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利用高速微粒子撞击工件的表面改性工艺(WPC处理),可以通过向工件赋予残余应力及提高表面硬度来提高零部件的疲劳强度。另外,在滑动构件表面形成微细的酒窝状(浅凹洼)表面,即形成油洼,可改善润滑性能,有利于滑动接触零件如齿轮、轴承的低摩擦化及长寿命化。介绍了WPC处理的工作原理、应用效果以及与DLC覆膜等进行复合处理后提高工件寿命的实例。
The use of high-speed particle impact on the workpiece surface modification process (WPC treatment), can be given to the workpiece by the residual stress and improve the surface hardness to improve the fatigue strength of parts. In addition, forming a dimple-like (dimple-like) surface on the surface of the sliding member, that is, forming an oil pocket, can improve the lubricating performance and contribute to the low friction and long life of sliding contact parts such as gears and bearings. The working principle of WPC processing, the application effect and the example of improving the service life of the workpiece after composite treatment with DLC film are introduced.