A study on the ball endmill process of brittle materials

2014 Fiscal Year Final Research Report

• Project/Area Number: 23560145
• 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: Teikyo University (2014); Kyushu Sangyo University (2012-2013); Tsuyama National College of Technology (2011)
• Principal Investigator: ONO Takenori 帝京大学, 理工学部, 講師 (70509083)
• Co-Investigator(Kenkyū-buntansha): MATSUMURA Takashi 東京電機大学, 大学院工学研究科, 教授 (20199855)
• Project Period (FY): 2011-04-28 – 2015-03-31
• Keywords: 硬脆材料 / ガラス切削 / 脆性破壊 / ボールエンドミル / 切れ刃稜線形状 / 単結晶ダイヤモンド / 集束イオンビーム加工 / 材料除去機構

Outline of Final Research Achievements

In this research, the effect of the micro structure on the cutting edge in the ball endmill process of optical glasses is investigated.
Machining tests are performed by mono-crystal diamond tools of which the cutting edge is dressed the triangle micro structure. In machining tests, it can be concluded as following, 1. Characteristics of the brittle fracture are effected by a vertical angle of the triangle structure. In the milling process, the brittle fracture is reduced by the specific vertical angle of the triangle structure.2. The feature of brittle cracks is changed by the components of the material cut.

Free Research Field

機械工学