铝合金半固态触变挤压成形研究  

Semi-solid Thixo-extrusion Research on Aluminum Alloy

作　　者：东栋 郭晓琳[1] 苏胜伟[1] 王胜龙 周小京 刘奇[1] 王志敏[1] 吴凯[1] Dong Dong;Guo Xiaolin;Su Shengwei;Wang Shenglong;Zhou Xiaojing;Liu Qi;Wang Zhimin;Wu Kai(Beijing Hangxing Machinery Manufacturing Co.,Ltd.,Beijing 100013)

机构地区：[1]北京航星机器制造有限公司,北京100013

出　　处：《航天制造技术》2018年第6期6-10,共5页Aerospace Manufacturing Technology

摘　　要：研究了2A12铝合金半固态触变挤压成形的温度区间,以及坯料的微观组织、内部质量和表面形貌,再通过有限元软件模拟铝合金半固态触变挤压成形的坯料形状、成形过程中的等效应力、温度场变化等影响因素对半固态触变挤压成形的影响,最后对制得的零件进行表征与分析。The semi-solid thixotropic extrusion forming temperature range of 2A12 aluminum alloy was studied in the first place.The microstructure,quality and appearance of the billet were then analyzed.The influences of the semi-solid billet shape,effective stress and temperature field were identified through finite element software simulation. Finally,the mechanical property and structure morphology of product by semi-solid thixo-extrusion was characterized and analyzed.

关 键 词：铝合金 半固态 触变挤压成形 

分 类 号：TG249.2[金属学及工艺—铸造]