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of TS-40A alkaline solution, subsequently, dilute H2SO4 acid solution removed Cu-oxides (Cu2O and CuO) as well as a lot of O=C and Cu(OH)2. Key words: pretreatment; copper-oxide; H2SO4; XPS; sheet... affinity with oxygen and no self-passivation layer forming to prevent the underlying Cu from further oxidation [8]. An oxide layer formation on the surface of Cu seed layer will deteriorate in mechanical......
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industry with LVDSS forming techniques improving. The behavior of LVDSS is quite different from that of homogenous steel sheet during forming processes and the contact state between skin steel sheets... Finite element analysis for delamination of laminated vibration damping steel sheet WANG Yong(王 勇)1, CHEN Jun(陈 军)1, TANG Bing-tao(唐炳涛)2 1. National Die and Mold CAD Engineering Research Center......
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图；计算模型 中图分类号:TG 386; V 261 文献标识码:A Forming limit diagram and calculating model for 5A90 Al-Li alloy sheet at elevated temperature MA Gao-shan, WAN Min, WU Xiang... to determine the forming limit diagram (FLD) of 5A90 Al-Li alloy sheet at various temperatures. The effects of forming temperature on the FLD were investigated experimentally at the forming speed......
(2015)05-1641-07 Theoretical and experimental study of axisymmetric three-point incremental sheet forming PENG Wei1, WANG Yuhuai1, 2, LU Yanlin1, WANG Qiucheng1, JIANG Xianfeng1 (1. Key Laboratory...,进一步验证了所提出的控制局部变形以提高整体成形精度的合理性. 参考文献: [1] Emmens W C, Sebastiani G, van den Boogaard A H. The technology of incremental sheet forming: A brief review of the history[J]. Journal of Materials Processing......
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. This work was continued by HARDT and FENN[7], who employed closed-loop control of sheet forming operation to determine optimal BHF trajectories. SIEGERT[8] designed a blank holder made up of rigid... limit diagram (FLD) has been widely used to assess sheet metal failure due to localized necking in sheet metal forming process. In this study, the FLD is also served as forming limit criterion......
-based alloys sheet by element powder cold roll forming and reactive synthesis, but the high porosity of sheet is unabsorbable. As a new technology of sheet preparation, the electron beam-physical... Macro-microscopic morphology and phase analysis of TiAl-based alloys sheet fabricated by EB-PVD method ZHANG De-ming(章德铭)1, CHEN Gui-qing(陈贵清)1, HAN Jie-cai(韩杰才)1, ZHANG Xing-hong(张幸红)1, YAO......
view of mechanical properties and lubrication status are carried out. By comparing the calculated sliding speed between sheet and dies along selected section at different forming velocities... and formability in sheet metal forming[J]. CIRP Annals-Manufacturing Technology, 2014, 63(2): 727-749. [5] 于忠奇. 汽车用铝合金板冲压成形仿真精度与机罩外板拉深工艺设计研究[D]. 上海: 上海交通大学机械与动力工程学院, 2005: 33-41. YU Zhongqi. Investigation......
