Study of Laser Treatment of Abrasive Retention Force for a Thermoplastic Bonded Diamond Wheel by Thermal Processing and Ablation Effect

—Direct Irradiation by Multi Mode Optical Fiber for Pulse Laser—

Abstract

Although flash-lamp pumped pulsed laser has the good performances of high energy and high peak power, the pulse repetitions are considerably low. Therefore, it is only applied to a limited extent. In this report, the light energy by using a semiconductor pumped pulse laser with ability of the high repetitions was transmitted to the wheel using an optical multi mode fiber with the large core diameter (200 μm) and irradiated to the surface on the thermoplastic resin bonded diamond wheel. As a result, we succeeded in restoring the retentivity of thermoplastic resin for grains by effect of laser-thermal and laser-ablation processing, and confirmed a finding of the columnar structure with potential, which might be created the new polishing tools, in the wheel surface.