Production of A356 aluminum alloy wheels by thixo-forging combined with a low superheat casting process

查看全文 作　　者：Wang [1]Shuncheng;Cai [1]Chang;Zheng [1]Kaihong;Qi [1]Wenjun

机构地区：[1]Institute of Metal Processing,Forming Technology, Guangdong General Research Institute of Industrial Technology

出　　处：《China Foundry》索引2013年第10卷第5期,共5页

基　　金：financially supported by the Science and Technology Innovation Foundation of Guangzhou Research Institute of Non-ferrous Metals(2009A10);the Guangdong Province Cooperation Project of Industry,Education and Academy(2012B090600051) 摘　　要：The A356 aluminum alloy wheels were produced by thixo-forging combined with a low superheat casting process.The as-cast microstructure,microstructure evolution during reheating and the mechanical properties of thixo-forged wheels made from the A356 aluminum alloy were studied.The results show that the A356 aluminum alloy round billet with fine,uniform and non-dendritic grains can be obtained when the melt is cast at 635 oC.When the round billet is reheated at 600 oC for 60 min,the non-dendritic grains are changed into spherical ones and the round billet can be easily thixo-forged into wheels.The tensile strength,yield strength and elongation of the thixo-forged wheels with T6 heat treatment are 327.6 MPa,228.3 MPa and7.8%,respectively,which are higher than those of a cast wheel.It is suggested that the thixo-forging combined with the low superheat casting process is an effective technique to produce aluminum alloy wheels with high mechanical properties. 关键词：semisolid metal THIXO-FORGING low superheat casting aluminum alloy wheel

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Production of A356 aluminum alloy wheels by thixo-forging combined with a low superheat casting process

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