共搜索到10191条信息，每页显示10条信息，共1020页。用时：0小时0分0秒671毫秒
Superplastic forming of Ti6Al4V alloy using ZrO2-TiO2 ceramic die with adjustable linear thermal expansion coefficient JIANG Shao-song(蒋少松), ZHANG Kai-feng(张凯峰) National Key Laboratory... of the ZrO2-TiO2 ceramic die. Key words: Ti6Al4V; superplastic forming; ceramic die; linear coefficient of thermal expansion 1 Introduction Ti6Al4V has a wide application in the fields of the aerospace......
......
Thermal expansion of MWCNT-reinforced copper composite XU Long-shan(许龙山), CHEN Xiao-hua(陈小华), PAN Wei-ying(潘伟英), LI Wen-hua(李文华), YANG Zhi(杨 植), PU Yu-xing(蒲玉兴), YI Guo-jun (易国军) , YI Bin... dispersed in the composite and bonded to the matrix. In addition, the thermal expansion of the composites with various MWCNT contents (0%, 1% and 5%, mass fraction) were investigated. The coefficient......
Effects of coil length on tube compression in electromagnetic forming YU Hai-ping(于海平), LI Chun-feng(李春峰) School of Materials Science and Engineering, Harbin Institute of Technology, Harbin...; Abstract: The effects of the length of solenoid coil on tube compression in electromagnetic forming were investigated either by theory analysis or through......
to the surface. During laser forming, a transient temperature fields is caused by the irradiation and travelling of a laser beam.Consequently, thermal expansion and contraction take place, and allows...FEM SIMULATION FOR LASER FORMING PROCESSING Y.B.Chen1,S.Y.Lin2,X.Y.Wang2,L.Q.Li1 (1.State Key Laboratory of Advanced Welding Production Technology, Harbin Institute of Technology, Harbin 150001......
of experimental setup: 1-Die; 2-Thermal couple; 3-Punch; 4-Heating element; 5-Thermal isolator; 6-Cushion; 7-Water cooling plate Fig.5 Loading paths for forming part with expansion ratio of 50% A sound part... for useful wrinkles According to Ref.[14], wrinkles were classified as bursting wrinkles, dead wrinkles and useful wrinkles for forming a tubular part with large expansion ratio. Useful wrinkles should......
-section thickness distribution for different forming stages. From the figure, it can be seen that at the early stage of the expansion (1.3 ms) process, the thickness distribution of the tube is uniform... Determination and application of stress-based forming limit diagram in aluminum tube hydroforming ZHOU Lin (周林), XUE Ke-min (薛克敏), LI Ping (李萍) School of Materials Science and Engineering, Hefei......
in lab by using the present forming method. The forming tests show that the maximum expansion ratio (MER) of the AA6061 extruded tube increases by 25.5% and the material properties of formed AA6061...J. Cent. South Univ. (2017) 24: 1040-1049 DOI: 10.1007/s11771-017-3507-8 Heat treatment and granule medium internal high-pressure forming of AA6061 tube BI Jiang(毕江)1, 2, ZHAO Chang-cai(赵长财)1, BI......
is enriched with Nb, Ti and Si, forming FeTiO5, Nb2O5, Fe2SiO4 and TiO2. Phosphorus hardly influences the thermal expansion coefficient of IN909 alloy. However, it increases the formation of ε phase... Influence of phosphorus on oxidation behavior oflow thermal expansion superalloy IN909 at 650 ℃ SUN Ya-ru(孙雅茹)1, 2, SUN Wen-ru(孙文儒)2, HOU Gui-chen(侯桂臣)2, GUO Shou-ren(郭守仁)2, LIU Zheng (刘 正)1, HU......
stress and deformation in the forming parts due to the difference of thermal expansion coefficient [14]. Residual stress not only has an adverse effect on static load strength, fatigue strength... by laser solid forming YANG Hai-ou(杨海欧)1, 2, ZHANG Shu-ya(张书亚)1, 2, LIN Xin(林鑫)1, 2,HU Yun-long(胡云龙)1, 2, HUANG Wei-dong(黄卫东)1, 2 1. State Key Laboratory of Solidification Processing, Northwestern......
