低刚度约束下复合材料螺旋铣磨制孔  

Composite holes by spiral milling at low stiffness have higher accuracy

作　　者：高航[1] 姚舜铭 鲍永杰[1] 刘旭超 GAO Hang;YAOShunming;BAOYongjie;LIU Xuchao(School of Mechanical Engineering,Dalian University of Technology,Dalian 116024,Liaoning,China;DUT Changzhou Research Institute Co.,Ltd.,Changzhou 213164,Jiangsu,China)

机构地区：[1]大连理工大学机械工程学院,辽宁大连116024 [2]大连理工常州研究院有限公司,江苏常州213164

出　　处：《金刚石与磨料磨具工程》2018年第3期42-47,共6页Diamond & Abrasives Engineering

基　　金：国家自然科学基金项目(51475073);中央高校基本科研业务费专项资金资助(DUT16QY01);江苏省科技攻关计划项目(BE2016065)

摘　　要：针对复合材料构件空间狭小、加工可达性差、加工精度不足的问题,使用基于微刃切削原理的电镀金刚石磨具,在低刚度约束下螺旋铣磨制孔。通过理论分析磨粒切削长度和实验对比加工效果,发现:相较于普通硬质合金刀具,金刚石磨具的磨削力峰值降低30%,且普遍低于60N;用金刚石磨具加工的孔边缘几乎无毛边,也不见磨削烧伤。采用微刃切削方法可降低切削力,减少加工毛刺,提高加工精度。To solve the problems of machining composite components,such as narrow space,poor accessibility and low accuracy,electroplated diamond abrasives are used to spirally drill the material at low stiffness based on micro-edge cutting principle.Theoretical analysis on cutting length of abrasive and comparative test show that the cutting force of diamond tools is generally lower than 60 N,that the maximum of which is 30%lower than that of ordinary cemented carbide tools;and that there is no bur nor burn on the edge drilled by diamond tools.In conclusion,micro-edge cutting could decrease the force and burs,thus improving accuracy.

关 键 词：微刃切削 电镀金刚石磨具 切削力 加工毛刺 

分 类 号：TG58[金属学及工艺—金属切削加工及机床] TG74