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Research on Machining Micro-pits Array by Ecm with Active Masks

Author: SongMan
Tutor: QuNingSong
School: Nanjing University of Aeronautics and Astronautics
Course: Mechanical Manufacturing and Automation
Keywords: Tiny pits Electrolytic Machining Mask Electric field analysis Piston Friction
CLC: TG662
Type: Master's thesis
Year: 2010
Downloads: 65
Quote: 2
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Abstract


Automotive engine pistons , piston rings surface texture morphology can be stored lubricants to improve the lubricating properties of the friction surface to reduce wear , improve energy utilization . The use of electrochemical machining (Electrochemical Machining, ECM) produced in the friction surface hemispherical the tiny pits morphologies become the hotspot of the countries in the study . Electrochemical machining is the use of the principle of anodic dissolution anode in the electrolyte can occur Forming part of a manufacturing technology . For processing due to the electrochemical machining , the cathode and the workpiece is non-contact , no stress and deformation, the addition material reduction process is conducted in the form of ions , so this micro dissolved and removed by such the electrolytic processing techniques has a great development in the field of fine manufacturing potential. Electrochemical micromachining technology research array of micro- pit structure , has important practical significance . This paper studies a the hemispherical tiny pits processing method , the main work is as follows : ( 1 ) to introduce the curved friction surface cathode mask electrochemical machining tiny pits test method , ANSYS electric field analysis of the test process , the results show that the use of this method can be achieved. (2) of the above methods , process research , design electrolytic machining piston the fragments surface micro pit fixture , a the cathode mask thickness as well as machining voltage micro- pit morphology . (3 ) design of the circumference of the piston side surface of an electrochemical machining a range of micro - pit array fixture and test research . (4) The electrolysis transfer processing micro- pit array test research methods , processing of anode and cathode enclosed area between the mathematical model , ANSYS electric field analysis . The the electrolytic transfer processing tiny pits array test system (5) different processing parameters : cathode thick plastic machining gap and the current density of micro- pit morphology .

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CLC: > Industrial Technology > Metallurgy and Metal Craft > Metal cutting and machine tools > Special machine tools and processing > Electrochemical machining machine tools and processing
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