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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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of circular metal sheets into the quasi-cup specimens, applied work by the external load is absorbed by two different parts: blank and Teflon-pad. Therefore, theoretical analysis consists of two.... The summation of energy dissipation by all the mentioned mechanisms result in the following relation to estimate total absorbed energy by the blank during the shaping process of a circular metal sheet......
two different blank holders. It is because the type of blank holder cannot change the deformation behaviors of aluminum metal. Fig. 5 Profile of drawn cup used for microstructure observation Drawing... This is because, at the initial stage of deep drawing process, the circular blank is always under blank holder force (BHF) using the flat blank holder. Since the stress state in the outer flange is pure......
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J. Cent. South Univ. (2016) 23: 544-554 DOI: 10.1007/s11771-016-3101-5 Tooth surface geometry optimization of spiral bevel and hypoid gears generated by duplex helical method with circular profile... 2016 Abstract: In order to effectively improve meshing performance of spiral bevel and hypoid gears generated by the duplex helical method, the effects of straight lined and circular cutting edges......
J. Cent. South Univ. (2020) 27: 1134-1145 DOI: https://doi.org/10.1007/s11771-020-4354-6 Towards a circular metal additive manufacturing through recycling of materials: A mini review XIA Yang(夏阳)1... for the metal additive manufacturing. The concept of circular metal additive manufacturing involves the recycling of the metal feedstock and the additive manufactured parts leading to the truly zero waste......
to the primary tube blank. 4 Conclusions 1) Based on the 3D dynamics model and elasto-plastic FE model, an effective method to study the deforming mechanism of non-mandrel drawing process of circular aluminium... Deforming mechanism of non-mandrel drawing process of circular aluminium tube by simulation QUAN Guo-zheng(权国政), ZHOU Jie(周 杰), WANG Meng-han(王梦寒), QUAN Guo-hui(权国辉), TONG Ying(佟 莹) College......
sheet in some sheet forming processes[J]. Mater Sci Eng A, 1998, A242: 15-21. [17]Doege E, Sommer N. Blank-holder pressure and blank-holder layout in deep drawing of thin sheet metal[J]. Advanced... were then employed in the numerical simulation of warm drawing process, and the influences of process parameters such as drawing temperature, blank holder force were investigated. In order to validate......
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...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......