长期以来国内大多数企业的锻造齿轮毛坯的预处理是采用传统的正火工艺(950℃×(4~6)h,空冷)。最近几年随着齿轮材料的多样化和对齿轮质量的高标准要求,这种传统的正火常难以满足大批量生产要求,而且处理后的坯料机加工性差,给机加工和随后热处理带来困难。1传统工艺分析锻造齿 For a long time, most of the domestic forged gear blank pretreatment is the use of the traditional normalizing process (950 ℃ × (4 ~ 6) h, air cooling). In recent years, with the diversification of gear materials and the high standards for gear quality, this conventional normalizing is often difficult to meet with mass-production requirements and the machined billet is poorly machined to give machining and subsequent heat treatment difficult. 1 traditional process analysis forging teeth