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cold pressed (under the pressure of 200 MPa to gain identical pore structures as the porous FeAl materials) and sintered in a vacuum with the finally sintering temperature of 950 ℃ for 30 min... procedure. The volume decrease of traditional porous metal materials after sintering can be then explained by the decrease of porosity during the sintering process. The pore structure of traditional......
sheet metal stamping (EMAS) was presented. A series of uniaxial and plane-strain tensile experiments were carried out on AA5052-O sheet by using a combined quasi-static stretching and pulsed...: electromagnetically assisted sheet metal stamping (EMAS); aluminum alloy sheet; electromagnetic forming (EMF); quasi-static-dynamic deformation  ......
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the friction in metal forming processes by superimposing ultrasonic waves [J]. CIRP Annals-Manufacturing Technology, 2001, 50(1): 195–200. (Edited by YANG Hua) 中文导读 超声激励下金属板材摩擦特性 摘要:在金属板材超声辅助拉深工艺中,超声激励在板材与模具间所产生......
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of Porous Metal Materials, Northwest Institute for Nonferrous Metal Research, Xi’an 710016, China) Abstract: Based on the oval-oval structure of different sections of two intersecting metal fiber sintered... difference method, and the numerical simulation of the forming process of metal fiber sintered node could be realized. Focus on the metal fibers with the angle of 0°, 45°, and 90°, the numerical......
electromagnetic (Lorentz) body forces to shape sheet metal parts. One of the several advantages of EMF is the considerable ductility increase observed in several metals, with aluminum featuring prominently among them. Electromagnetically assisted sheet metal stamping(EMAS) is an innovative hybrid sheet metal processing technique that combines EMF into traditional stamping. To evaluate......
Ti can be carried out in different ways, such as furnace sintering [2,3], sponge replication [4], gelcasting [5,6], mixed sintering [7], freeze casting [8], metal injection molding [9], fiber... [18,19]. LI et al [20] previously reported porous Ti (with porosity of 5%-50%, micro-pore size of <50 μm and elastic modulus of 10-40 GPa) sintered by Ti powder compacts. To achieve functional......
MPa for the ‘porous’ fly ash/6061Al and ‘dense’ fly ash/7075Al composite, respectively. Key words: metal matrix composites; porous material; fly ash; damping properties 1 Introduction The aluminum... Effect of porosity on damping behavior of aluminum matrix-fly ash composites DOU Zuo-yong(窦作勇), WU Gao-hui(武高辉), JIANG Long-tao(姜龙涛), DING Bai-suo(丁佰锁), CAO Jin-hua(曹金华) Center for Metal Matrix......