我厂在压气机钢盘(材料30CrMnSiA)的燕尾槽拉削加工中,原采用四氯化碳加机油做拉削液,因四氯化碳剧毒,严重污染环境,危害工人健康而被禁用。后采用二氯甲烷加机油作拉削液,其毒性稍小于四氯化碳,但拉削光洁度达不到▽7的要求、拉刀磨损严重,因此,必须寻找新型的拉削液。加工燕尾型榫槽所用拉削速度为13米/分,正好处于拉削速度“死区”附近,不但对拉削加工光洁度极为不利,拉削中产生的切削压力 Our factory in the dovetail groove broaching process of the compressor steel plate (material 30CrMnSiA), the original use of carbon tetrachloride plus oil for broaching fluid, due to highly toxic carbon tetrachloride, serious environmental pollution, endangering the health of workers was banned . After the adoption of dichloromethane plus oil for broaching fluid, its toxicity slightly less than carbon tetrachloride, but the broaching finish less than ▽ 7 requirements, Broach Broken serious, therefore, must find a new broaching fluid. Machining dovetail groove mortise used broaching speed of 13 m / min, just in the broaching speed “dead zone” near, not only for the broaching process is extremely unfavorable finish, broaching in the cutting pressure