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-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......
: The effect of temperature distribution on warm forming performance was investigated for 5083-O (Al-Mg) sheet metal blanks. Combined isothermal/non-isothermal FEA with design of experiments tools were used... mostly due to the non-uniform temperature distribution in the warm forming system. Determination of optimal temperature for warm forming of sheet material is necessary to achieve the desired increased......
Trans. Nonferrous Met. Soc. China 22(2012) s343-s349 Comparative analysis between stress- and strain-based forming limit diagrams for aluminum alloy sheet 1060 FANG Gang, LIU Qing-jun, LEI Li-ping.... Different from the FLD that varies with the strain path, the FLSD is not sensitive to the strain path. Therefore, FLSD is convenient as a forming limit criterion for multi-stage sheet forming......
: Given the increasing use of glass mat-reinforced thermoplastic (GMT) composites, the formability of GMT sheets is currently a topic of research. A new sheet forming process for solidified GMT... of drawing force with the depth of the drawing was analyzed using FEM and experiments. Key words: sheet forming; glass mat-reinforced thermoplastic; finite element method; temperature; dummy sheets Cite......
parameters as well as the critical value of damage variable were identified so as to provide a theoretical ground on which the plastic forming technology of magnesium alloy sheet can be optimized. Key words... deformation so that the prediction on superplastic instability of AZ31B sheet and optimization of the plastic forming technology can be achieved. Up to now, there are few literatures concerning internal damage......
on mixed hardening mode describe the experimental subsequent yield loci well, whereas isotropic hardening mode, which is widely used in sheet metal forming fields, predicts values larger than...; 1 Introduction In sheet metal forming processes, accurate prediction of both the geometry and the mechanical properties......
Experimental and finite element analysis for fracture of coating layer of galvannealed steel sheet S. I. KIM1, J. U. HER2, Y. C. JANG2, Y. LEE2 1. Sheet Products and Process Research Group, POSCO...: Mechanical properties of galvannealed (GA) steel sheet used for automotive exposed panel and predicted failure phenomenon of its coating layer were evaluated using finite element method. V-bending test......
industry, stretch forming of heat-treatable aluminium sheet is widely used to produce aircraft skin, such as blended wing body sections, fuselage sections and nacelle skins[1]. Due to the significant... stretch forming process, the multi-stage operations experience complex deformation and massive heat treatment procedures, which easily leads to sheet metal fracture and deformation defects related......
Center, Shanghai 200030, China;2.Shanghai Volkswagen Automotive Company Ltd.(SVM) Abstract:In sheet metal forming, drawbeads are often used to control uneven material flow which may cause defects such as wrinkles, fracture, surface distortion and springback.Appropriate setting and adjusting the drawbead force is one of the most important parameters in sheet metal forming process control. This paper......
by KAZANOWSKI et al [1] in rod extrusion and by MAMALIS et al [2] in tube extrusion, make this process a suitable choice for producing hybrid sheet metals. In this process, alike other metal forming processes...Trans. Nonferrous Met. Soc. China 24(2014) 3285-3292 Upper bound analysis for hybrid sheet metals extrusion process through curved dies H. HAGHIGHAT, H. SHAYESTEH Mechanical Engineering Department......
