绿色加工中刀具磨损对表面粗糙度影响的研究

Research on Influence of Cutting Tool Wear on Surface Roughness in Green Machining

在切削镍基高温合金材料过程中,由于不稳定因素造成已加工表面粗糙度很难控制,尤其是刀具磨损直接影响着表面粗糙度。通过对冷风油雾、冷风和常温油雾等不同冷却切削条件下刀具磨损和工件表面粗糙度微观形貌的实验,研究了高速切削镍基高温合金材料时,在不同冷却切削条件下刀具磨损对工件表面粗糙度的影响,揭示了用冷风高速切削提高表面加工质量的规律。

The machined surface roughness is difficult to control in machining process of high - temperature nickel - based alloy because of some unstable factors. Especially, the tool wear influences the surface roughness directly. Through the experiment of the microscopic appearances of tool wear and workpiece surface roughness under different cooling and machining conditions with cold wind oil mist, cold wind and normal temperature oil mist involved, the influence of the tool wear on the workpiece surface roughness in high speed machining of high - temperature nickel - based alloy under different cooling conditions is studied, thus revealing the regularities of improving surface machining quality with cold wind high - speed machining process.