Performance of Newly Developed Single-Point Diamond Dresser in Terms of Cutting-Point Rake Angle

Abstract

A cutting-tool-type single-point diamond dresser, the tip of which has a given rake angle, was developed and its dressing and grinding performances were investigated. It was found that the dressing mechanism changes its mode from a ductile mode to a brittle mode with increasing back rake angle in the negative direction and that the cutting-tool-type dresser exhibits good robustness owing to the fact that its ground surface roughness is not markedly affected by the dressing conditions.

Computer-aided Simulation of Rotary Diamond Dressing Based on Kinematic Analysis

“…Tawakoli and Daneshi (5) developed a specially designed electroplated RDD called a T-dresser, which markedly reduces the grinding force and results in almost the same ground surface roughness as that produced by a grinding wheel dressed with a conventional electroplated RDD. Mochida et al (6) developed a single-point diamond dresser with a specific back rake angle and found that the back rake angle strongly affects the grinding wheel surface topography and the grinding performance. Focusing on the performance of rotary dressers, Huang (7) considered the resultant force acting on an individual grit of a vitrified diamond grinding wheel to evaluate the dressing efficiency of two types of rotary dresser: a SiC roll and a steel roll.…”