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我厂加工CW6163年床尾座体丝杠和小刀架丝杠,原班产8根,粗、精车分开,光洁度▽6。使用高速梯形螺纹军刀后,现以T30×6×307的丝杠为钢,加工不分粗、精车,车一根丝杠只需五、六刀,班产最高达50件,光洁度达▽8左右。高速梯形螺纹车刀(见图)曾于1979年8月参加武汉市工交系统比赛,荣获第一名。刀具特点: 1、刀尖刃磨长度较短,B=h+Z+1,所以支承强度好。式中h—螺纹工作高度,Z—间隙。 2、刀尖前刃宽度△=0.366t～0.536Z。式中:t—螺距。
I plant processing CW6163-year-old subclass and cardinal brackets flat, original production 8, rough, fine car separate, finish ▽ 6. The use of high-speed trapezoidal thread saber, now T30 × 6 × 307 for the screw, the rough machining, fine car, car a screw only five or six knives, production up to 50 classes, finish ▽ 8 or so. High-speed trapezoidal thread turning tools (see photo) was in August 1979 to participate in Wuhan City Gongtong system competition, won the first place. Tool features: 1, a shorter blade sharpening, B = h + Z +1, so the bearing strength is good. Type h-thread working height, Z-gap. 2, tip cutting edge width △ = 0.366t ~ 0.536Z. Where: t-pitch.