共搜索到7137条信息,每页显示10条信息,共714页。用时:0小时0分0秒640毫秒
Cold stamping for AZ31B magnesium alloy sheet of cell phone house HUANG Guang-sheng(黄光胜)1, 2, ZHANG Lei(张 雷)1, 2, SONG Bo(宋 波)1, 2, PAN Fu-sheng(潘复生)1, 2 1. National Engineering Research Center... underwent RUB process. It provides an alternative to the electronics industry in the application of magnesium alloys. Key words: magnesium alloy sheet; repeated unidirectional bending; cold stamping......
Trans. Nonferrous Met. Soc. China 29(2019) 2455-2462 Re-dissolution and re-precipitation behavior of nano-precipitated phase in Al-Cu-Mg alloy subjected to rapid cold stamping Cai-he FAN1, Ling OU1...) and hardness test were used to study the re-dissolution and re-precipitation behavior of nano-precipitates of the spray-formed fine-grained Al-Cu-Mg alloy during rapid cold stamping deformation. Results......
to meet the demand of the rapid growth of these aviation parts in the future. MOHAMED et al [9] and FOSTER et al [10] proposed a novel forming process named hot stamping and die quenching (HFQ... by a gas spring and exerted blank holder force on the sheet. After the stamping, the sheet was held between the cold punch and die to quench for 30 s, ensuring sufficient cooling of the sheet. Parameters......
heating. At the same time, excessive springback will occur due to their higher ratio of yield stress to elastic modulus at the cold sheet stamping condition [3]. Researches show that forming aluminum alloy... of cold stamping. In the hot stamping process, aluminum alloy blank is heated to solution temperature for a period of time firstly and then quickly moved to the cold die for forming and quenching......
Trans. Nonferrous Met. Soc. China 30(2020) 2590-2598 Effect of rapid cold stamping on fracture behavior of long strip S′ phase in Al-Cu-Mg alloy Cai-he FAN1,2, Ling OU1,2, Ze-yi HU1, Shu WANG3, Jun... and selected area electron diffraction techniques were used to study the mechanism that underlies the influence of rapid cold-stamping deformation on the fracture behavior of the elongated......
Intermetallic Evolution of Al–Si-Coated Hot Stamping Steel During Modified Electrically Assisted Rapid HeatingKieu-Anh Dinh1,Sung-Tae Hong1,Tien Viet Luu1,Moon-Jo Kim2,Heung Nam Han31. School... University摘 要:Modified electrically assisted(EA) rapid heating of Al–Si-coated hot stamping steel is suggested, and the intermetallic evolution in the coating......
in Al-Cu-Mg alloy subjected to rapid cold stamping [J]. Transactions of Nonferrous Metals Society of China, 2019, 29(12): 2455-2462. [19] ZHANG Zi-zhao, XU Xiao-chang, LIU Zhi-yi, XIA Qing-kun, ZENG...Trans. Nonferrous Met. Soc. China 31(2021) 1930-1938 Effect of aging treatment on evolution of S′ phase in rapid cold punched Al-Cu-Mg alloy Ze-yi HU1, Cai-he FAN1,2, Tong SHEN1, Ling OU1, Nan-shan......
Elastic-plastic solution to stamping thin strip on elastic foundation LI Yu-ping(李玉平)1, ZHOU Li-qun(周里群)1, ZHOU Yi-chun(周益春)2 1. School of Mechanical Engineering, Xiangtan University, Xiangtan...; Abstract: An analytical method was proposed to solve the mechanical problems of stamping a thin strip on an elastic foundation. The thin strip was divided into four......
smaller with increasing of the passes number. The crystal defects made in the process of the rapid cold stamping are useful for the alloy phase ex-solution, and also benefit for the nucleation and growth... of rapid cold punching 在药筒的筒壁上选取试样进行微观组织观察和力学性能分析.采用Titan G2 60-300型透射电镜(TEM)和利用Helios Nanolab 600i型扫描电镜(SEM)的电子背散射成像技术(EBSD)分析试样的微观结构,透射试样采用机械预减薄至80 μm左右后进行双喷电解,电解液为硝酸+甲醇(体积比为1:3),温度低于248 K;EBSD试样采用电解......
at 1 050 ℃ for 3 min and rapid cooling in a protective atmosphere (cooling rate> 180 ℃/min) can completely soften the materials of the cold-deformed sample...J. Cent. South Univ. (2012) 19: 1508-1516 DOI: 10.1007/s11771-012-1169-0 Softening interstage annealing of austenitic stainless steel sheets for stamping processes HAN Fei(韩飞)1, 2, 3, LIN Gao-yong(林高......