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在农机修理中,经常会遇到表面光洁度和精度要求较高的零件要修复或加工,比如各种轴类、孔类零件。这些零件,经过振动堆焊修复,在车床上进行加工时,若利用安装在刀架上的滚压工具,就可以很容易地获得较高的光洁度,而不必使用磨床。经过滚压加工后,可压平零件表面的加工痕迹,并在金属表层形成冷硬层及有利的残余应力,起到强化表面、提高使用性能的作用,特别可以提高在交变载荷下工作零件的抗疲劳能力。滚压工艺在机械行业早已广泛应用,但农机修理部门用得还不多,它是一种很值得推广的无切削加工工艺。
In agricultural machinery repair, often meet the surface finish and precision parts require higher repair or processing, such as all kinds of shaft, hole parts. These parts, after vibration surfacing repair, when machining on a lathe, can be easily smoothed without the need to use a grinding machine with a roll-on tool mounted on a tool holder. After rolling processing, the surface can be flattened machining marks, and in the metal surface of the formation of chilled layer and favorable residual stress, play to strengthen the surface, improve the performance of the role, in particular, can improve the working parts under alternating load Anti-fatigue ability. Rolling process in the machinery industry has long been widely used, but the agricultural machinery repair sector is not much use, it is a very worthwhile promotion of non-cutting process.