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我厂的密封耐磨钢套,材料为W18Cr4V,淬硬HRC63～66,外形尺寸(毫米):φ180×φ160×220。此件属薄壁套,淬火变形大,原工艺规定淬火前留磨削余量内、外各2毫米,磨削工时定额80小时。由于余量太大,工时超额。为提高切削效率,我们采用YA6刀片作车刀,选用合适的几何参数、最佳的切削速度,使用必需的冷却润滑,成功地进行了以车代磨的革新。
I plant sealed wear-resistant steel sleeve, the material is W18Cr4V, hardened HRC63 ~ 66, dimensions (mm): φ180 × φ160 × 220. This piece is a thin-walled sleeve, large quenching deformation, the original provisions of the grinding process before leaving grinding allowance, the outer 2 mm, grinding hours fixed 80 hours. As the margin is too large, work hours are excessive. In order to improve the cutting efficiency, we adopted the YA6 blade as a turning tool and selected the appropriate geometry parameters, the best cutting speed, the use of the necessary cooling lubrication, successfully carried out on behalf of the vehicle grinding innovation.