干喷砂工艺对硬质合金刀片切削刃钝圆半径和粗糙度的影响  

Effect of Dry Blasting Process on Cutting Edge Radius and Roughness of Cemented Carbide Inserts

作　　者：黄丽容[1] 彭勇 陈瀚 谭卓鹏 钟志强 焦建良 黄学槐 Huang lirong;Peng Yong;Chen Han;Tan Zhuopeng;Zhong Zhiqiang;Jiao Jianliang;Huang Xuehuai

机构地区：[1]江西理工大学机电工程学院,江西省赣州市341000 [2]上海大学机电工程与自动化学院 [3]南昌大学国际材料创新研究院 [4]赣州澳克泰工具技术有限公司 [5]崇义章源钨业股份有限公司

出　　处：《工具技术》2024年第11期43-48,共6页Tool Engineering

基　　金：江西省主要学科学术和技术带头人培养项目(20225BCJ23012)。

摘　　要：采用单因素法设计试验分别探讨了喷砂压力、喷砂时间对切削刃钝圆形状和刀片表面粗糙度的影响规律,分析并解释了其影响切削刃钝圆形状和表面粗糙度的原因。结果表明:随着喷砂压力的增加,切削刃钝圆半径呈近似线性增大;随着喷砂时间的增加,钝圆半径的增幅逐渐变缓,喷砂压力对钝圆半径的提升效果更明显。当喷砂压力达到0.28MPa时,切削刃粗糙度和前刀面粗糙度显著增加,而后刀面粗糙度受喷砂压力影响较小;在0.4~1min以内随着喷砂时间的增加,刀片切削刃和后刀面粗糙度都有所降低,前刀面粗糙度相对稳定。The influence of blasting pressure and blasting time on the micro geometry of cutting edge and the surface roughness of cutting insert is studied by using single factor method,and the reasons which affect the micro geometry and surface roughness of cutting edge are analyzed and explained.The results show that the radius of cutting edge increases linearly with the increase of blasting pressure.With the increase of blasting time,the increase of cutting edge radius gradually slows down,and the effect of blasting pressure on cutting edge radius is more obvious.When the blasting pressure reaches 0.28MPa,the roughness of cutting edge and rake face increases significantly,while the roughness of flank face is less affected by the blasting pressure.With the increase of blasting time within 0.4~1min,the roughness of the cutting edge and the flank face decrease,and the roughness of the rake face is relatively stable.

关 键 词：干喷砂 切削刃粗糙度 表面粗糙度 刃口钝化 硬质合金刀片 

分 类 号：TG71[金属学及工艺—刀具与模具] TH162.1[机械工程—机械制造及自动化]