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Study On The Mechanism And Application Of Aviation Materials Which Is Difficult To Be Machined By The Electrochemical Micro-Machining

Posted on:2013-07-16Degree:MasterType:Thesis
Country:ChinaCandidate:Y T DaiFull Text:PDF
GTID:2231330371458447Subject:Mechanical Manufacturing and Automation
Abstract/Summary:PDF Full Text Request
Nowadays most of the product towards the direction of development is high precision, high quality, and more and more difficult to process, especially in the aviation industry, traditional processing methods have been unable to meet the needs of today’s society. In this environment, pushing out a good quality, high precision and high efficiency method of processing is the most necessary. Electrochemical micro-machining because of its unique characteristics and its advanced nature, it’s the most highlight among all of the emerging machining ways.Electrochemical machining (ECM) is an anodic dissolution process of workpiece in a flowing electrolyte where the shape of the tool as cathode is copied into the workpiece as anode with the removal of the anode ion by ion. It will be tremendous potential in the micro-manufacturing field with advantages as high machining efficiency, wide materials suit to fabricate, no residual stress and no heat treatment borne on the workpiece surface.Electrochemical micro-machining machining consists of many kinds, for example: pulse electrochemical machining, composite electrochemical machining and so on. High frequency short pulses electrochemical machining is widely applied in practice because of its good processing property. However in past research,they just rough study on the theoretical aspects, and do not use it integrated into the actual production very well. Therefore it’s imperative to study on the mechanism and application of aviation materials which is difficult to be machined by the electrochemical micro-machining.This paper studies on some properties in electrochemical machining of titanium alloys, establishing a mathematical model of high frequency short pulses electrochemical machining of titanium alloys based on the capacitance model. Simulated the model used the Matlab, analysis the changes of balance gaps and the feasibility when changed the elements. Then comparison with experiment and analysis of the error. Passed validation, the voltage is proportional to the balance clearance, the pulse frequency is inversely proportional to the balance clearance, the duty cycle of pulse is proportional to the balance clearance. Then building the database, take the theory into practical production. Finally Summary of this article, and making the recommendations for future research.
Keywords/Search Tags:Titanium alloys, Electrochemical machining, Mathematical model, Simulation and emulation
PDF Full Text Request
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