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Surface topography evolvement of galvanized steels in sheet metal forming HOU Ying-ke(侯英岢)1, YU Zhong-qi(于忠奇)1, ZHANG Wei-gang(张卫刚)1, JIANG Hao-min(蒋浩民)2, LIN Zhong-qin(林忠钦)1 1... tests were performed to investigate the surface topography evolvement of hot-dip galvanized(GI) and galvannealed(GA) steels and the effects of die hardness on sheet metal forming(SMF). Experimental......
EXPERIMENTAL TESTING OF DRAW-BEAD RESTRAINING FORCE IN SHEET METAL FORMING J.H.Yang1,X.Y.Ruan1,D.N.He1,J.Chen1 (1.Department of Plasticity Forming Engineering, Shanghai Jiao Tong University, Shanghai 200030, China) Abstract:Due to complexities of draw-bead restraining force calculated according to theory anddepending on sheet metal forming properties experiment testing system......
STUDY ON THE FINITE ELEMENT NUMERICAL SIMULATION OF SHEET METAL FORMING J.L.Song1,D.J.Hu1,Z.B.Jiang2,Z.L.Chang2,T.Y.Li2 (1.School of Mechanical Engineering, Shanghai Jiaotong University, Shanghai... plastic simulation on sheet metal forming were technologically studied and simplified; a simplified model of the blank holder during the drawing process was established and the effects of related......
. Key words: incremental sheet forming (ISF); sheet metal forming; numerical simulation; finite element method ... forming (ISF) is an innovative, flexible sheet forming process that uses principles of layered manufacturing for the production of complex-shaped sheet metal parts. This process resolves the complicated......
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: nickel coating; instability criterion; forming limit diagram; sheet metal forming ... are vital since a coating should not crack or flake as the metal sheet deforms. In most cases, it is the coating that contacts with dies, so the forming characteristics and friction properties......
, were revealed. Furthermore, the differences between conventional extrusion and sheet metal extrusion process were also analyzed. Key words: sheet metal forming; Arbitrary Lagrangian-Eulerian method... of shrinkage cavity. The shrinkage cavity is incidental in the sheet metal extrusion.References [1] LANGE K, BIRZER F, MUKHOTY A, HOFEL P, SINGER H. Cold forming and fineblanking, a handbook on cold......
. And critical rupture and wrinkle BHF curves are given. Aclose-loop control system is established to finish the forming process. Key words:blank holder force; sheet metal deep drawing; artificial...DETERMINATION OF BLANK HOLDER FORCE IN SHEET METAL DEEP DRAWING PROCESS Y.J.Luo1,Y.Q.Zhang1,D.N.He1 (1.Department of Plasticity Technology, Shanghai Jiao Tong University, Shanghai 200030, China......
Effect of properties of sheet metal on shear stress wrinklingCUI Ling-jiang(崔令江), ZHANG Wen-cong(张文从)(School of Materials Science and Engineering,Harbin Institute of Technology(Weihai), Weihai 264209, China)Abstract:The shear stress wrinkling in forming large thin-sheet is very common and hard to be eliminated. The property of sheet metal is one of the most important factors that have great......
