高强度合金钢深孔薄壁件加工工艺方法

Technology Method of Thin Wall and Deep Hole Parts of High-strength Alloy Steel

通过分析40CrNiMoA深孔薄壁件的加工难点,从深孔加工方法及刀具、珩磨和定位装夹等方面入手,采用拉镗拉铰加工内孔后进行立式珩磨,再以内孔定位车削外形。该方法解决了40CrNiMoA深孔薄壁件的加工问题,质量稳定可靠,完全满足生产需求,可为加工类似难加工材料深孔薄壁件提供参考。

Based on analyzing difficulties of machining thin wall and deep hole parts of 40CrNiMoA,and starting from deep-hole machining methods and cutter to boring and positioning and clamping.This paper introduces the method of maching hole by pulling boring and pulling reaming,then honing hole and finally machining profiles by hole,which solves machining difficulties of deep hole parts in 40CrNiMoA,this methods is stable,and can meet actual requirements.In addition,it can provide a reference for other deep-hole machining parts in difficult machining materials.