选用PCBN刀具精车淬硬钢，其工件硬度高于45HRC，效果最佳。其切削速度通常为80～120m/min，工件硬度越高，切削速度宜取低值，如车硬度为70HRC的工件，其切削速度宜选60～80m/min。精车的切深在0.1～0.3mm，进给量在0.05～0.025mm/r，精车后的工件表面粗糙度为Ra0.3～0.6μm，尺度精度可达0.013mm。若

(Choose PCBN tool finish turning hardened steel, the workpiece hardness is higher than 45HRC, the best effect. The cutting speed is usually 80-120m/min. The higher the hardness of the workpiece, the lower the cutting speed should be. For example, the cutting speed of a workpiece with a turning hardness of 70HRC should be 60-80m/min. The depth of cut of the finishing turning is 0.1～0.3mm, the feed rate is 0.05～0.025mm/r, the surface roughness of the workpiece after finishing turning is Ra0.3～0.6μm, and the dimensional accuracy can reach 0.013mm. like)

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选用PCBN刀具精车淬硬钢，其工件硬度高于45HRC，效果最佳。其切削速度通常为80～120m/min，工件硬度越高，切削速度宜取低值，如车硬度为70HRC的工件，其切削速度宜选60～80m/min。精车的切深在0.1～0.3mm，进给量在0.05～0.025mm/r，精车后的工件表面粗糙度为Ra0.3～0.6μm，尺度精度可达0.013mm。若

(Choose PCBN tool finish turning hardened steel, the workpiece hardness is higher than 45HRC, the best effect. The cutting speed is usually 80-120m/min. The higher the hardness of the workpiece, the lower the cutting speed should be. For example, the cutting speed of a workpiece with a turning hardness of 70HRC should be 60-80m/min. The depth of cut of the finishing turning is 0.1～0.3mm, the feed rate is 0.05～0.025mm/r, the surface roughness of the workpiece after finishing turning is Ra0.3～0.6μm, and the dimensional accuracy can reach 0.013mm. like)

[下载]10460942461.rar

2022-8-11 10:46 上传

文件大小: 23 KB
下载次数: 0