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汽车零件的加工特点是批量大、品种多、质量要求高,切削加工时常遇到一些质量问题不易解决。例如:变速箱拨叉孔拉削后质量低,影响换档灵敏度;三、四档齿轮热处理后变形大、硬度高和孔壁厚度不均匀,压内花键工序长期达不到质量要求,且压刀消耗量大;里程表主动齿轮是一个多头蜗杆,采用插齿刀铣齿时因切屑粘刀而划伤已加工表面。为此,我厂曾先后试用了国产的十余种切削液,都不够理想。后使用F极压乳化液,在攻丝、拉孔、钻孔、铰孔、铣多头蜗杆、剃齿和压花键孔等关键工序中,经过四年多生产实践,证明这种乳
Auto parts processing is characterized by large quantities, varieties, high quality requirements, cutting often encountered some quality problems not easily solved. For example: gear box fork hole after broaching low quality, affecting the shift sensitivity; third and fourth gear gear after deformation, high hardness and uneven wall thickness, pressure spline process fails to meet the quality requirements for a long time, and Pressure knife consumption is large; Odometer active gear is a long worm, the use of gear shaper hobbing teeth when cutting knife has been machined surface. To this end, I have tried the plant has made more than 10 kinds of cutting fluid, are not ideal. After the use of F extreme pressure emulsion, in tapping, pulling holes, drilling, reaming, milling long worm, shaving and pressing key hole and other key processes, after more than four years of production practice, this milk proved