超硬の正面研削における研削液供給法が及ぼす研削抵抗および研削抵抗分布への影響

抄録

Purpose of this study is to establish a technology for machining cemented carbide with high efficiency and high precision with vertical face grinding using a cup type electroplated diamond grinding wheel. Face grinding experiments were conducted on workpieces using two types pf grinding wheels which have different grinding fluid supply methods, and the grinding force distribution was obtained to evaluate the grinding performance. The grinding force distribution is obtained by the successive differentiation of the grinding force, in a rising up section, when the grinding wheel momentarily starts to interfere with spark-out surface, which has the pressure dimension. As the grinding length increases, both the amount of workpiece adheres to the grinding wheel surface and the grinding force increases, while the surface roughness becomes smoother. As the grinding progress, peak position of the grinding force distributions are almost the same. Both the workpiece adherence and grinding force are smaller and the surface roughness is better with the working surface spouting wheel, indicating that this is an appropriate grinding fluid supply method.