High precision grinding of die steel with ultrasonically oscillated electro-deposited diamond tools (6th report)

Relationships between truncation height, grinding force and ground surface roughness

Abstract

Manual finishing is an important die manufacturing process, which decides surface roughness and form accuracy of a die. However, manual polishing consumes several days to finish the die surface. Therefore, high precision die milling or grinding is required that improve surface roughness, in order to minimize manual polishing time and to save labor. In the previous report, ultrasonically assisted grinding experiments were carried out and 3D shape mirror surfaces were obtained. And cutting edge truncation is necessary to perform mirror surface grinding, before grinding operation. In this study, we investigated relationship between truncation height, grinding force and ground surface roughness to estimate optimum truncation height for mirror surface finishing.