共搜索到16252条信息，每页显示10条信息，共1626页。用时：0小时0分1秒270毫秒
Technological Aspect of Processing Maps for the AA2099 AlloyAneta Lukaszek-SolekFaculty of Metals Engineering and Industrial Computer Science,AGH University of Science and Technology, Av. Mickiewicza 30, 30-059 Krakow, Poland摘 要:Results of an experimental and modelling study of forming processes in the AA2099 Al–Cu–Li alloy, for a wide range......
processing, and it is very difficult to simulate the forming process. Based on the Updated-Lagrange method in the deformation mechanics, an elastic-plastic large deformation spline finite strip method...COMPUTER AIDED ANALYSIS FOR COLD ROLL FORMING THIN CHANNEL SECTION Z.W.Han1,C.LIN2,L.Q.Ren1,Y.Q.Nie3 (1.Key Laboratory of Terrain Machine Bionic Technology, Jilin University, Changchun 130025......
的显微硬度,其结果与试验值相吻合. 关键词:镁合金；复合材料；搅拌摩擦加工；Ti颗粒 中图分类号:TB 331 文献标识码:A Preparation of Mg-AZ31 based composites with Ti particles by friction stir processing WANG Kai-dong1... fabricated by friction stir processing (FSP). The results show that after four FSP passes the matrix structure of composite layers can be significantly refined within 3?5 μm obviously, and the fragments......
激光立体成形Ti-80%Ni合金显微组织及力学性能许小静1,2,林鑫1,黄卫东2,王亮0(1.陕西省西安市西北工业大学凝固技术国家重点实验室2.北京市航天材料及工艺研究所)摘 要:采用激光立体成形技术制备了Ti-80%Ni(质量分数)合金,研究了工艺参量对显微组织和力学性能的影响.结果表明,激光立体成形Ti-80%Ni合金由η-TiNi3板条和TiNi(B2)+η共晶构成.随着激光扫描速率的增大,η板条逐渐转变为η板条+(TiNi(B2)+η)共晶,η板条尺寸随着扫描速率的增大而减小;随着激光功率的增大,共晶体......
Jing-yu(秦敬玉)1, BIAN Xiu-fang(边秀房)1 1. Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials, Ministry of Education, Shandong University, Ji’nan 250061, China; 2. Key... dilatometry(DIL). The variation of the non-monotonic effects of tungsten content and vacuum conditions on the glass forming ability(GFA) of Fe-based alloys can be drawn in a schematic diagram......
Processing of AZ31 magnesium alloy by accumulative roll-bonding at gradient temperatureMeiyan ZHAN 1), Chunming LI 1), Weiwen ZHANG 2) and Datong ZHANG 2) 1) School of Materials Science and Engineering, South China University of Technology, Guangzhou 510640, China 2) National Engineering Research Center of Near-net-shape Forming for Metallic Materials, South China University of Technology......
PREPARATIONS OF FERRIMAGNETOFLUIDS AND THEIR APPLICATIONS IN MINERAL PROCESSING袁楚雄,刘奇摘 要:<正>In this paper the research results on the preparation... which produces ultrafine Fe3O4 particles. Theparticles may then be collected by sodium oleate into kerosene phase andthus forming stable oil-base ferrimagnetofluid, or, alternately, the parti-cles may......
连续处理线立式活套电动机的转矩补偿肖海健1(1.湖北省武汉市中冶连铸技术工程股份有限公司自动化分公司)摘 要:立式活套是连续处理线中的关键设备,在活套充放套以及钢带的上卷和分卷过程中,活套的入口段和出口段电动机出现频繁的变速运行,为实现全线带钢张力的稳定,需要对活套电动机转矩进行补偿,以免造成全线带钢张力波动,以致影响生产.通过对活套系统受力的分析,给出考虑了相关补偿后的活套传动系统转矩控制模型,并对模型各个环节进行了分析,总结了全线带钢张力波动时需要考虑的各个因素.研究的结果在多条彩涂和镀锌处理线中得到了实际......
formability for complex shape products. Rheo-forging of metal offers not only superior mechanical strength but also requires significantly lower machine loads than solid forming processes. In order... by experiment and by simulation using DEFORM 3D, are present. Key words: rheo-forging; A356 alloy; formability; forming defects 1 Introduction Rheological material forming is a near-net-shape forming......
Special-shaped tube drawing forming and conformal optimization of die cavity QI Hong-yuan(齐红元), ZHU Heng-jun(朱衡君) School of Mechanical and Electric Control Engineering,Beijing Jiaotong University, Beijing 100044, China Received 20 April 2006; accepted 30 June 2006 Abstract: Aiming at the issues in quick processing and modeling design of drawing special-shaped tube die, by Conformal......
