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Article ID: 1003-6326(2005)05-1009-05 Solution for slab forging with bulge between two parallel platens by strain rate vector inner-product integration and series expansion ZHAO De-wen(赵德文... was developed. First, effective strain rate for slab forging with bulge was expressed in terms of two-dimensional strain rate vector, and its inner-product was integrated term by term. Second, a summation......
Carbide Coating Preparation of Hot Forging Die by Plasma Processing杜文华School of Mechanical Engineering and Automation, North University of China摘 要:To meet the performance requirements of hot forging die heat resistant layer, the Ni60-SiC coating, Ni60-Cr3C2 coating, and Ni60-WC coating were prepared using W6Mo5Cr4V2 as substrate material with 30%SiC......
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Optimization of TC11 alloy forging parameters using processing mapsLI Miaoquan and ZHANG Xiaoyuan School of Materials Science and Engineering, Northwestern Polytechnical University, Xi’an 710072... and the processing maps of TC11 alloy at different strains were drawn by using the dynamic material model (DMM). Based on the processing maps, the proper forging parameters, including a combination of defor......
Design of relief-cavity in closed-precision forging of gearsZUO Bin(左斌), WANG Bao-yu(王宝雨), LI Zhi(李智), ZHENG Ming-nan(郑明男), ZHU Xiao-xing(朱小星) (School of Mechanical Engineering, University of Science and Technology Beijing, Beijing 100083, China)Abstract:To reduce the difficulty of material filling into the top region of tooth in hot precision forging of gears using the alternative die designs......
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J. Cent. South Univ. Technol. (2009) 16: 0546-0551 DOI: 10.1007/s11771-009-0091-6 Die design for cold precision forging of bevel gear based on finite element method Jin Jun-song(金俊松)1, Xia... of the die structure increases the life of the die from 100 to 6 000 hits. Key words: die; gear; precision forging; finite element analysis; optimized design ......
Semisolid forging electronic packaging shell with silicon carbon-reinforced copper compositesKai-Kun WangSchool of Materials Science and Engineering,University of Science and Technology Beijing摘 要... was introduced for billets preparation. The SiC/Cu composites were first prepared by PM, and then, semisolid reheating was performed for the successive semisolid forging. Composite billets with SiC 35% volume......
Controlling Flow Instability in Straight Spur Gear Forging Using Numerical Simulation and Response Surface MethodZhao-Yang Jin1,Nan-Nan Li1,Kai Yan1,Jing-Xin Chen1,Dong-Lai Wei2,Zhen-Shan Cui31... straight spur gear forging. The processing map of AZ31 B alloys was calculated from flow stress curves and then integrated with the finite element model to simulate the distribution of flow instability......
