砂带磨削钛合金磨削加工性能研究  

Reserch on Grinding Performance of Ti-6Al-4V Alloys with Abrasives Belt

作　　者：蒲昌兰 陈清良 苏宏华[2] 丁文锋[2] 赵彪 PU Changlan;CHEN Qingliang;SU Honghua;DING Wenfeng;ZHAO Biao(AVIC Chengdu Aircraft Industrial(Group)Co.,Ltd.,Chengdu 610092,China;College of Mechanical and Electronic Engineering,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China)

机构地区：[1]成都飞机工业(集团)有限责任公司,四川成都610092 [2]南京航空航天大学机电学院,江苏南京210016

出　　处：《机械制造与自动化》2023年第3期25-28,44,共5页Machine Building & Automation

摘　　要：针对钛合金零件干式打磨过程中磨具堵塞引起烧伤的问题,开展锆刚玉砂带和碳化硅砂带干式磨削TC4合金加工试验。通过分析磨削温度、材料去除量、表面完整性及磨粒磨损特征,对砂带磨削钛合金加工工艺进行研究。结果表明:相同磨削用量条件下,锆刚玉砂带相比于碳化硅砂带,磨削温度最高降低23.6%,耐用度提高2倍。磨削表面粗糙度随砂带线速度的增大逐渐降低,且两种砂带磨削表面粗糙度差值呈逐渐增加趋势。当砂带线速度v_(s)=20 m/s时,锆刚玉砂带比碳化硅砂带磨削表面粗糙度降低了29.7%;当磨削深度增大时,碳化硅砂带磨削表面粗糙度值快速增加,锆刚玉砂带磨削表面粗糙度增量缓慢,当磨削深度增大到0.1 mm时,表面粗糙度差值达到22%。In order to solve the grinding surface burns of Ti-6Al-4V alloys caused by severe tool blocking with chips,the dry grinding test of Ti-6Al-4V alloys with zirconium corundum abrasive belt and silicon carbide abrasive belt was carried out.By analysis of the grinding temperature,material removal,surface integrity and abrasive wear characteristics,the abrasive belt grinding process of titanium alloy was studied.The results show that zirconium corundum abrasives belt possesses lower grinding temperature by 23.6%and durability two times higher than that of silicon carbide one under the same grinding parameters.The ground surface roughnesses deceases gradually along with the increase of the abrasive belt line speed,and the roughness differences of grinding target for both abrasives belts tend to decline.The zirconium corundum abrasive belt has smaller ground surface roughness values by 29.7%at 20 m/s compared to the silicon carbide one under the same value of depth-of-cut.As the grinding depth increases,the grinding surface roughness value of silicon carbide abrasive belt increases rapidly,the grinding surface roughness increment of zirconium corundum abrasive belt is slow and when the grinding depth increases to 0.1 mm,the surface roughness difference reaches 22%.

关 键 词：TC4合金 砂带磨削 磨削温度 材料去除量 表面完整性 

分 类 号：TG580.6[金属学及工艺—金属切削加工及机床]