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/Explicit finite element method, the forming force changing trend of deep drawing test for 6 A16 aluminum alloy plate after pre-aging and storage at room temperature for one month was simulated under...Effect of Friction Coefficient on Deep Drawing of 6A16 Aluminum Alloy for Automobile Body刘钊扬1,2,3,熊柏青1,2,3,LI Xiwu1,2,3,YAN Lizhen1,2,3,LI Zhihui1,3,ZHANG Yongan1,2,3,LIU Hongwei1,2,31. State Key......
Process of back pressure deep drawing with solid granule medium on sheet metalDONG Guo-jiang(董国疆)1, 2, ZHAO Chang-cai(赵长财)2, CAO Miao-yan(曹秒艳)3(1. College of Vehicles and Energy, Yanshan University... critical thinning area, can be described as an approximately spherical cap. According to this forming feature, back pressure deep drawing technology with solid granules medium on sheet metal was proposed......
A LOOP DRAWBEAD RESTRAINING FORCE MODEL IN SHEETMETAL DEEP DRAWING PROCESS Y.J.Luo1,J.F.Zheng1,J.L.Cheng2,S.P.Li1,J.Y.Jiang2,Y.Q.Zhang1,D.N.He1 (1.National Mold & Die CAD Engineering Research.... The good agreement between the calculated values and experiments data justifies the proposed loop drawbead restraining force model.`` Key words:drawbead; restraining force; sheet metal; deep drawing; [全文内......
Numerical modeling and deformation analysis for electromagnetically assisted deep drawing of AA5052 sheet LIU Da-hai(刘大海), LI Chun-feng(李春峰), YU Hai-ping(于海平) School of Materials.... The results show that electromagnetically assisted deep drawing can remarkably improve the formability of aluminum cylindrical parts. The proposed numerical scheme can successfully simulate......
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.... And critical rupture and wrinkle BHF curves are given. Aclose-loop control system is established to finish the forming process. Key words:blank holder force; sheet metal deep drawing; artificial......
, the dynamic characteristic of local lubrication is pointed out to be the main reason for the effects of forming speed on drawability. Key words: aluminum alloys; deep drawing test; forming speed; drawability 随着...;Schematic of deep drawing test tooling[19] 利用300 t伺服驱动压力机进行了2类不同滑块运动模式下的拉伸试验,结果如图2所示.一类基于传统机械式曲柄滑块运动(正弦曲线),另一类为在成形过程中保持速度恒定.针对2类运动曲线,采用了由低到高不同级别成形速度.试验中通过调节数控液压垫,以实现液压垫预加速,从而缓解高速下冲击对拉深试验的影响.由于设备限制,凹模最......
the influence of different rolling routes on the formability, deep drawing test and Erichsen test were performed. The circular blanks with diameter of 80 mm were machined from rolled sheets for the deep drawing test. Deep drawing tests were conducted at a punch speed of 5 mm/min. The blank holder force was 4.0 kN. Anti-wear hydraulic oil was used as the lubricant for deep drawing tests. The main......
HMPT-BOF-RH-CSP process for SPHE substrate of cold rolled deep drawing steelWU Guang-liang(吴光亮), MENG Zheng-bing(孟征兵), ZHOU Chao-yang(周超洋), LIU Xin-bin(刘新彬), HUANG Tao(黄涛)(School of Minerals... (CSP) process, parameters controlling on cold rolling deep drawing substrate SPHE were investigated during smelting and rolling process by composition design and technology control. The influence......
J. Cent. South Univ. (2018) 25: 3085-3097 DOI: https://doi.org/10.1007/s11771-018-3976-4 Physical simulation test of soil-rock mixture from synthetic transparent soil DING Xiao-hua(丁小华)1, 2, ZHOU... is mixed with liquid paraffin and n-tridecane at a mass ratio of 4.4 at room temperature of 17℃. Physical and mechanical properties of transparent soil are determined by physical test and compared......
Deep Drawing with Local Hardening on Digital Multi-axis Servo PressSebastian Kriechenbauer,Reinhard Mauermann,Dirk Landgrebe摘 要:The paper discusses a new drawing technology, based on a synchronized movement of ram and cushion with multiple bending operations in alternating directions called ‘‘bi-directional deep drawing(BDD).’’ The goal is to avoid......
