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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......
Simulation of sheet metal extrusion processes with Arbitrary Lagrangian-Eulerian method ZHUANG Xin-cun(庄新村), ZHAO Zhen(赵 震), XIANG Hua(向 华), LI Cong-xin(李从心) National Engineering Research Center... the sheet metal extrusion process, aiming at avoiding mesh distortion and improving the computational accuracy. The method was implemented based on MSC/MARC by using a fractional step method, i.e.......
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......
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......
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......
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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) Abstract:Blank holder force (BHF) is an important measure to control the sheet metal forming.BHF is identified quickly using artificial neural network (ANN) on the basis of itsanalytical description......
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on sheet metal was designed and manufactured. Typical parts, such as conical, parabolic, cylindrical and square-box-shaped components, were successfully trial-produced as well. According to the analysis of the changing trends of the cross-section shape and the wall thickness during the process, it can be found that the shape of the free deformation zone of the sheet metal, which is the most......
