热管砂轮缓进给深切磨削钛合金试验

Experiment of Creep Feed Deep Grinding Titanium Alloy With Heat Pipe Grinding Wheel

分析了热管砂轮在磨削过程中的强化换热原理并研制出可用于磨削加工的热管砂轮,实现了对热管砂轮的抽真空检漏、精确注液以及真空封尾。最后,开展了热管砂轮缓进给深切磨削TC4钛合金的试验研究。试验结果表明,热管砂轮能将磨削弧区积聚的热量通过砂轮内部热管的换热作用快速疏导出去,从而有效降低磨削温度,避免工件烧伤。

The heat transfer principle of heat pipe grinding wheel （HPGW） in the grinding process is illustrated and a new HPGW is developed for grinding. Three important processes of manufacturing the HPGW including vacuum pumping and its leak test, working fluid filling and vacuum sealing are achieved. Finally, creep feed deep grinding experiments are carried out for TC4 titanium alloy. Experimental results show that using the HPGW could lead the heat in the grinding zone to the inside heat pipe of the grinding wheel thus to be transferred to the circumstance, so that grinding temperature could be reduced and burnout of workpiece surface could be prevent effectively.