基于轴向旋转热管砂轮的钛合金成型磨削试验研究  

Experimental Study of Profile Grinding of Titanium Alloy with Axial Rotating Heat Pipe Abrasive Wheel

作　　者：王洋[1] 傅玉灿[1] 陈佳佳[1] 高俊杰[1] 钱宁 WANG Yang;FU Yucan;CHEN Jiajia;GAO Junjie;QIAN Ning(College of Mechanical and Electrical Engineering,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China)

机构地区：[1]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》2019年第1期1-4,14,共5页Machine Building & Automation

摘　　要：针对钛合金等难加工材料成型磨削时存在的磨削弧区温度高、型面温度分布不均的问题,设计制作了轴向旋转热管成型砂轮。通过开展轴向旋转热管砂轮的钛合金成型磨削试验,探究了热流密度、充液率及砂轮转速各因素下热管砂轮对磨削弧区温度的控制效果,从而得到最佳磨削参数及热管砂轮最佳充液率,并在此条件下进一步开展磨削试验。对磨削后的工件表面质量进行了分析,发现轴向旋转热管砂轮能明显降低弧区温度,减小型面温差,并避免工件烧伤现象,这表明其在强化弧区换热、控制磨削温度上具有较大优势。Because high temperature and uneven temperature distribution appear on the profile surface of the grinding zone during grinding of the titanium alloys,the axial rotating heat pipe profile abrasive wheel is designed and manufactured.By profile grinding test for TC4,the effect of axial rotating heat pipe abrasive wheel on the temperature control of grinding zone under various factors such as heat flux,filling ratio and rotational speed is investigated and the optimal grinding process parameters and filling ratio are obtained.The profile grinding test is further done with optimal combination parameters and the ground surface quality of the workpiece is analyzed.It is found that the axial rotating heat pipe abrasive wheel can be used to decrease the temperature in the grinding zone and the temperature difference of profile surface and the burning phenomenon does not appear.It shows that is of great advantages in strengthening the heat transfer and controlling the grinding temperature.

关 键 词：轴向旋转热管砂轮 成型磨削 磨削温度 磨削表面质量 

分 类 号：TG580[金属学及工艺—金属切削加工及机床]