Title: Improving cylindricity and connectricity of hollow cylinder parts by electrochemical machining

Authors: Shuo-Jen Lee; Huan-Chih Peng; Yueh-Shiun Tsai; Chao-Chung Chen; Jung-Chou Hung; Chuan-Sheng Chiou; Yi-Ho Chen

Addresses: Department of Mechanical Engineering, Yuan Ze University, No. 135, Far-East Rd., Chung-Li, Taoyuan 32003, Taiwan ' Department of Mechanical Engineering, Yuan Ze University, No. 135, Far-East Rd., Chung-Li, Taoyuan 32003, Taiwan ' Department of Mechanical Engineering, National Taiwan University of Science and Technology, No. 43, Sec. 4, Keelung Rd. Taipei 10607, Taiwan ' Department of Mechanical Engineering, National Taiwan University of Science and Technology, No. 43, Sec. 4, Keelung Rd. Taipei 10607, Taiwan ' Department of Mechanical and Computer Aided Engineering, Feng Chia University, No. 100, Wenhwa Rd. Seatwen, Taichung, 40724, Taiwan ' Department of Mechanical Engineering, Yuan Ze University, No. 135, Far-East Rd., Chung-Li, Taoyuan 32003, Taiwan ' Department of Mechanical Engineering, Yuan Ze University, No. 135, Far-East Rd., Chung-Li, Taoyuan 32003, Taiwan

Abstract: Widely used in many mechanical systems, hollow cylinder-shaped parts should be accurately machined to ensure two critical specifications, i.e., cylindricity and concentricity. A dedicated electrochemical machining (ECM) system is designed to improve the cylindricity and concentricity of a small bearing. In order to optimise the ECM process, the commercial CAE software, COMSOL multi-physics, is utilised to analyse some key process parameters such as temperature, current density and flow distribution. From the analysis results, a suitable cathode, which is the ECM tool, could be designed. Temperature distribution, the cathode tool, current distribution, material removal rate (MRR) with the assistance of CAE software and the design of the ECM cathode tool are more efficient and accurate.

Keywords: hollow cylinder-shaped parts; electrochemical machining; ECM; cathode tool design; cylindricity; connectricity; hollow cylinders; small bearings; temperature; current density; flow distribution; material removal rate; MRR.

DOI: 10.1504/IJSURFSE.2015.072064

International Journal of Surface Science and Engineering, 2015 Vol.9 No.5, pp.425 - 435

Received: 27 Dec 2013
Accepted: 12 Sep 2014

Published online: 30 Sep 2015 *

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