30mm内径EA4T空心车轴深孔钻削试验  

Deep-hole Drilling Experiments of 30mm Inner Diameter EA4T Steel Hollow Axle

作　　者：刘永彬[1] 邵松涛[1] 贺庆强[2] 

机构地区：[1]南车青岛四方机车车辆股份有限公司技术工程部,山东青岛266111 [2]中国石油大学(华东)机电工程学院,山东青岛266580

出　　处：《组合机床与自动化加工技术》2015年第12期121-123,共3页Modular Machine Tool & Automatic Manufacturing Technique

基　　金：企业科技开发项目(SF/JG-忠字-2014-257);青岛市科技计划基础研究项目(13-1-4-257-JCH)

摘　　要：空心车轴深孔加工的工艺难度随着孔径减小而增大,为确定30mm内径EA4T空心车轴加工工艺参数的合理取值范围,利用深孔钻床进行了多根空心车轴的深孔钻削加工试验。试验结果表明,为保证顺利断屑并避免刀具过快磨损,进给量取值应在0.12mm/r左右,主轴转速取值应在600r/min左右,切削液流量取值应在80L/min左右,切削液压力控制在2~3.0MPa之间,按上述工艺参数加工后的空心车轴内孔同轴度、尺寸精度和表面粗糙度等指标全部符合设计要求。The difficulty of hollow axle deep-hole drilling increases w ith the decreasing of deep-hole size,in order to determine reasonable value range of deep-hole drilling process parameters,drilling experiments w ere carried out on the deep-hole drilling machine. The results show ed that the value of feed rate is 0. 12 mm / r,the value of spindle speed is 600 r / min,the cutting fluid flux is 80 L / min and the cutting fluid pressure is varying from 2. 0M Pa to 3. 0M Pa. The coaxially,dimension precision and the surface roughness of deep-hole surface w ere satisfied the design requirements.

关 键 词：空心车轴 EA4T车轴钢 深孔加工 

分 类 号：TH162[机械工程—机械制造及自动化] TG506[金属学及工艺—金属切削加工及机床]