提高压铸铝合金机械加工性能的研究  

Improvement of Machinability of Die Casting Aluminum Alloy

作　　者：黄勇[1] 孙宝纯[1] 

机构地区：[1]沈阳工业学院

出　　处：《特种铸造及有色合金》2003年第1期46-48,共3页Special Casting & Nonferrous Alloys

摘　　要：在ZL10 2铝合金的基础上 ,分别加入质量分数为 0 .5 %～ 1.5 %的Cu ,0 .4%～ 0 .7%的Mg ,0 .1%～ 0 .3%的Pb ,0 .1%～ 0 .3%的Bi,研制出一种易机械加工压铸铝合金。该合金组织中出现了CuAl2 和Mg2 Si强化合金相 ,铝合金的共晶硅呈团状或粒状。对研制的易机械加工压铸铝合金和常用的共晶型铝硅合金ZL10 2进行了性能测试 ,结果表明 ,易机械加工压铸铝合金抗拉强度比ZL10 2提高了 14 .17%,机械加工性能明显高于ZL10 2 ,是一种既能满足压铸工艺要求 ,又具有良好机械加工性能的合金。A die casting aluminum alloy with better machinabihty was developed by addition of (0.5～1.5)% Cu, (0.4～0.7)% Mg, (0.1～0.3)%Pb and (0.1～0.3)% Bi weight percent to conventional eutectic ZL102 alloy. There appeared CuAl2 and Mg2Si strengthening phase and granular eutectic silicon in the alloy performance tests were conducted for the developed die casting Al-al-loy and conventional eutectic ZL102 Al alloy. The results showed that the die casting aluminum alloy with better machinability not only met the requirements of die casting process but also exhibited excellent machinability. Also the tensile strength of the developed alloy was higher by 14.16% compared to Z1102 alloy.

关 键 词：压铸铝合金 机械加工性能 ZL102合金 

分 类 号：TG292[金属学及工艺—铸造]