郑州机械研究所锻压研究室承担的国家“863”项目“直齿圆柱齿轮冷精密成形技术及成套装备的研究” ,经过课题组的艰苦攻关 ,该项目取得了关键技术成果。直齿圆柱齿轮是汽车、农机中广泛应用的产品 ,常用模数为 2 .5～ 3.5 ,齿数 15～ 30 ,齿宽 2 0～ 30ｍｍ。目前采用切削加工 Zhengzhou Research Institute of Mechanics forging bear the national “863” project “spur gear cold precision forming technology and complete sets of equipment research”, after the group tackles painstakingly, the project has made key technical achievements. Spur gears are widely used in automobiles and agricultural machinery. The common module is 2.5 ~ 3.5, the number of teeth is 15 ~ 30, and the tooth width is 20 ~ 30mm. Currently using cutting