Aviation-oriented Micromachining Technology-Micro-ECM in Pure Water

This article proposes a precise and ecofriendly micromachining technology for aerospace application called electrochemical machining in pure water (PW-ECM). On the basis of the principles of water dissociation, a series of test setups and tests are devised and performed under different conditions. These tests explain the need for technological conditions realizing PW-ECM, and further explore the technological principles. The results from the tests demonstrate a successful removal of electrolytic slime by means of ultrasonic vibration of the workpiece. To ensure the stability and reliability of PW-ECM process, a new combined rnachining method of PW-ECM assisted with ultrasonic vibration (PW-ECM/USV) is devised. Trilateral and square cavities and holes as well as a group of English alphabets are worked out on a stainless steel plate. It is eonfirmed that PW-ECM will be probably an efficient new aviation precision machining method.

作 者： Bao Huaiqian Xu Jiawen Li Ying   作者單位： Bao Huaiqian(Jiangsu Key Laboratory of Precision and Micro-Manufacturing Technology,Nanjing University of Aeronautics andAstronautics,Nanjing 210016,China;College of Mechanical and Electric Engineering,Shandong University of Science and Technology,Qingdao 266510,China)

Xu Jiawen(Jiangsu Key Laboratory of Precision and Micro-Manufacturing Technology,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China)

Li Ying(Jiangsu Key Laboratory of Precision and Micro-Manufacturing Technology,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China;School of Mechanical and Electrical Engineering,Jinling Institute of Technology,Nanjing 210016,China) 

刊 名： 中國航空學報(英文版)  ISTIC 英文刊名： CHINESE JOURNAL OF AERONAUTICS  年，卷(期)： 2008 21(5)  分類號： V2  關鍵詞： electrochemical machining in pure water (PW-ECM)   cation exchange membrane   water dissociation