Study of grinding method accelerated by high-temperature softening on diamond with rapid rotation grinding

2015 Fiscal Year Final Research Report

• Project/Area Number: 25420052
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Production engineering/Processing studies
• Research Institution: Kyoto Institute of Technology
• Principal Investigator: Ota Minoru 京都工芸繊維大学, 機械工学系, 教授 (60504256)
• Project Period (FY): 2013-04-01 – 2016-03-31
• Keywords: ダイヤモンド / 高速研削 / 加工能率 / 表面粗さ / 研削温度 / ダイヤモンドホイール / 高温軟化

Outline of Final Research Achievements

In this study, a high-speed constant pressure grinding device having an in-process dressing mechanism was investigated, and high-speed constant pressure grinding experiments on a polycrystalline diamond (PCD) were carried out, moreover grinding temperatures were analyzed using FEM. In consequence, it was clarified that a grinding efficiency and a surface roughness were improved concurrently with increasing wheel speed. Moreover, an estimated grinding temperature of workpiece surface exceeded 850 degrees C at 100 m/s in wheel speed in dry condition. It was indicated that high-temperature softening of diamond was accelerated. It followed that grinding efficiency of diamond was dramatically increased using the grinding method accelerated by high-temperature softening on PCD.

Free Research Field

生産加工学，マイクロ・ナノ加工，研削加工，微細加工，新材料加工