Mirror finishing of Co-Cr-Mo alloy using elliptical vibration cutting

被引：33

作者：

Song, YoungChan ^{[1
]}

Park, Chun-Hong ^{[1
]}

Moriwaki, Toshimichi ^{[2
]}

机构：

[1] Korea Inst Machinery & Mat, Nano Fus & Intelligent Mfg Syst Res Div, Taejon 305343, South Korea

[2] Setsunan Univ, Dept Ind & Syst Engn, Neyagawa, Osaka 5728508, Japan

来源：

PRECISION ENGINEERING-JOURNAL OF THE INTERNATIONAL SOCIETIES FOR PRECISION ENGINEERING AND NANOTECHNOLOGY | 2010年 / 34卷 / 04期

关键词：

Elliptical vibration cutting; Co-Cr-Mo alloy; Artificial joint head; Mirror finishing; Work hardening;

D O I：

10.1016/j.precisioneng.2010.02.003

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The biocompatibility and fatigue strength of Co-Cr-Mo alloy are excellent, making it suitable for the use in artificial joints. The head of an artificial joint must have a mirrored surface to reduce abrasive resistance. Mirror finishing of Co-Cr-Mo alloy with single-crystal diamond cutting tools is hindered by microchipping of the tool edge. It is generally believed that microchipping of diamond tools is caused by work hardening of the Co-Cr-Mo alloy during the cutting process. In the present research, mirror finishing of Co-Cr-Mo alloy was carried out using elliptical vibration cutting, as well as by ordinary cutting. The experimental results show that elliptical vibration cutting offers superior performance compared to ordinary diamond cutting without tool vibration. Microchipping, tool wear, and work hardening were all significantly reduced. A fine mirrored surface (with maximum surface roughness under 25 nmP-V) was maintained up to a cutting length of about 14 m. As a practical consequence, elliptical vibration cutting was successfully applied to the mirror finishing of a femoral head. (C) 2010 Elsevier Inc. All rights reserved.

引用

页码：784 / 789

页数：6

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