平面研削におけるワーク内の熱伝導の検討

抄録

The substantial heat generated during the grinding of titanium alloy workpieces poses challenges for heat dissipation, leading to surface damage and reduced machining accuracy. This study investigated heat diffusion during dry grinding of titanium alloy. Stationary heat source and grinding experiments were conducted on the Ti-6Al-4V specimen, with copper specimen serving as a control group. The grinding temperature of Ti-6Al-4V specimen is more affected by the feed rate than normal material, while it is similarly affected by the grinding depth and is minor by wheel speed. The temperature fluctuation was utilized to illustrate the degree of heat penetration. The results indicate that the heat is concentrated in the shallow layer of the Ti-6Al-4V workpiece, while the deep layers are less affected by the motion of the grinding wheel, exhibiting behavior similar to that of being heated by a constant heat source. The heat diffusion pattern during grinding in Ti-6Al-4V specimens was analyzed.