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Determination and application of stress-based forming limit diagram in aluminum tube hydroforming ZHOU Lin (周林), XUE Ke-min (薛克敏), LI Ping (李萍) School of Materials Science and Engineering, Hefei...-spacerun: yes"> Abstract: The stress-based forming limit......
Evaluation of forming limit in viscous pressure forming of automotive aluminum alloy 6k21-T4 sheet WANG Zhong-jin(王忠金)1, LI Yi(李 毅)1, LIU Jian-guang(刘建光)1, ZHANG Yi-he(张义和)2 1. School...; Abstract: A ductile fracture criterion is introduced into numerical simulation to predict viscous pressure forming limit of the automotive body aluminum alloy 6k21-T4. The material constant......
for the calculation of the instable eigen values were deduced. The forming limit diagrams of the nickel coating on the right region were plotted. It is exhibited that the forming limit of the coating sheet is between the forming limits of the individual nickel coating and steel substrate. The forming limit of the nickel coating is not so good as that of the steel substrate, and the forming limit strain......
, the forming of AA7075 cylindrical parts by HGMF process is taken as an example to establish the constitutive relation and forming limit diagram (FLD) of AA7075 sheet which is related to temperature... is established and the effect of technological parameters, such as forming temperature, blank-holder gap and drawing ratio, on the sheet metal formability, is studied. The limit drawing ratio curve of AA7075......
Prediction of Forming Limit Diagrams for Materials with HCP StructureSheng-Hua Wu1,Nan-Nan Song2,Francisco M.Andrade Pires1,Abel D.Santos1,21. Faculty of Engineering, University of Porto2. INEGI, University of Porto摘 要:The forming limit diagram(FLD) is an important tool to be used when characterizing the formability of metallic sheets used in metal......
Forming limit of textured AZ31B magnesium alloy sheet at different temperatures Huang Guang-sheng1, 2, Zhang Hua1, 2, Gao Xiao-yun1, Song Bo1, 2, Zhang Lei1, 2 1. College of Materials Science... direction. The forming limit diagrams (FLDs) of AZ31B magnesium alloy sheet were determined experimentally by conducting stretch-forming tests at room temperature, 100, 200 and 300 °C. Compared......
Trans. Nonferrous Met. Soc. China 22(2012) 2370-2378 Effect of flow stress-strain relation on forming limit of 5754O aluminum alloy WANG Hai-bo1, WAN Min2, YAN Yu1 1. College of Mechanical...; accepted 8 August 2012 Abstract: A modified Swift type flow stress-strain relation was presented in order to describe the uniaxial tension test curve reasonably. The FLD-strain (forming limit diagram made......
of spherical cap which is in the free deforming area. Key words: granule medium; aluminum alloy sheet; deep-drawing; hot forming; limit drawing ratio 1 Introduction Flexible-die hot forming technology... and PICCININNI [2] and LANG et al [3] respectively studied the constitutive relation, yield performance and forming limit of AA5754 sheet, AA6061 sheet and AA7075 sheet at elevated temperatures......
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...; Abstract: U-channel forming......
