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Precision plastic forming has become a key technology and an important way to improve product performance and quality, and enhance market competitiveness . This is because the precision plastic forming not only materials , energy saving, shorten the production cycle , reduce production costs , but also can make the metal flow lines along the part contour reasonable distribution of better materials organizational structure and performance , which can reduce the parts quality, improve product safety , reliability and service life. However , today 's fierce market competition makes more frequent product updates , development cycles are getting shorter , the use of new materials more difficult to process , and the need precision plastic forming , forging a more complex shape , and the time allowed for a pilot study greatly reduced. With the development of computer technology and plasticity theory , numerical simulation methods in the simulation of metal forming process shows great advantages . In this paper , based on the the MSC.Marc general purpose finite element software, the application of three-dimensional rigid-plastic finite element explicit algorithm external electrode cold extrusion process were simulated and analyzed , obtained the current state of the deformed material and equivalent plastic strain distribution law . External electrode cold extrusion process parameters The mold structure has been optimized , and the outer electrode cold extrusion process test based on the finite element analysis results . Test to verify the results of the finite element analysis , and cold extrusion qualified battery electrode products . Computer three-dimensional finite element simulation and physical tests to shorten the process development cycle , improve the advanced nature of the process , reduce production costs , with major social and economic significance .
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