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optimization stamping speed for sheet metal forming)
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5 Engineering Manager Khánh Lâm, (QJLQHHU 'kQ 3KҥP Yj 0LQK /kP ± Ĉm WҥRÿLӅXNLӋQFKRHPÿӇVҳS[ӃSWKӡLJLDQWKӵFKLӋQ&iFÿӗQJQJKLӋSPһFGEұQUӝQQKѭQJ
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Trang 77+Ҫ<+ѬӞ1*'Ү13*6 769lj&Ð1*+Ñ$ HV7+ĈӚ0,1+'lj1*
ABSTRACT
'HHS GUDZLQJ LV WKH PRVW DGYDQFHG VKHHW PHWDO IRUPLQJ WHFKQLTXH ,Q WRGD\¶V demanding environment is the global environment and energy saving, the process has been supposed to play a vital role in light-weight component industry Light-weight, high strength, low density and extreme corrosion aspects must be almost guaranteed in a deep drawn product However, due to those requirements, thinning and wrinkling and other defects will be increased also Numerous elements such as blank-holder pressure, punch force, speed of punch, blank shape, thickness variation, surface-to-surface friction coefficient, material characteristic«LQIOXHQFHG WR the success of methods as well as the quality of the products In addition, worldwide manufacturers keep getting the most goods done in less time Indeed, the increasing of productivity should be also dealt because it proportionally relates to the stamping speed This paper investigates the influence of punch velocity on deformation behavior of aluminum alloy 5052±H112 Finite Element Method was used to perform Nakajima test at several of punch velocities of specimen widths and monitor fluctuations in magnitude of von Mises stress, the major strain and minor strain Forming Limit Curve (FLC) will be obtained The results will be compared with experiment work That will pave the way for appropriate adjustments for next tasks that lead to find out the optimal stamping speed in deep drawing for AA5052-H112
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DANH MӨ& BҦNG
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DANH MӨ& HÌNH Ҧ1+ Hình 1.1: &KLWLӃWÿѭӧFJLDF{QJEҵQJSKѭѫQJSKiSGұSYXӕW 2
Hình 1.2: TѭѫQJTXDQFӫDYұWPүXYjFiFYQJWUrQÿѭӡQJFRQJJLӟLKҥQ 3
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Trang 137+Ҫ<+ѬӞ1*'Ү13*6 769lj&Ð1*+Ñ$ HV7+ĈӚ0,1+'lj1*
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Hình 2.1: ĈѭӡQJFRQJELӃQFӭQJ
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