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上海汽车齿轮厂和上海市机械制造工艺研究所共同协作,经过七年多的试验,使模锻齿坯——热轧齿形——蜗杆砂轮磨齿工艺获得成功,并且已经小批投入生产,一、热轧齿轮工艺(一)原理及其特点热轧齿轮是将工件锻坯用中频感应加热到1050℃,与带齿的轧轮对辗,并在对辗过程中加压并逐渐进给,将工件锻坯挤出齿形。采用热轧法加工的齿轮,由于齿形部分的金属流线未被切断,因此,其强度比用切削法加工的齿轮为高。另外,材料利用率和劳动生产率都将得到提高。
Shanghai Automotive Gear Factory and Shanghai Machinery Manufacturing Technology Institute work together, after more than seven years of trials, so die forging - hot-rolled tooth - worm wheel grinding process has been successful and has been put into production in small batches, First, the hot-rolled gear technology (A) the principle and characteristics Hot-rolled gear is the workpiece forging billet with medium frequency induction heating to 1050 ℃, and the toothed roller on the roller, and in the process of rolling pressure and gradually feed , The workpiece will be extruded tooth shape. The gear machined by the hot rolling method has a higher strength than the gear machined by the cutting method because the metal flow line of the tooth profile is not cut. In addition, both material utilization and labor productivity will be increased.