基于ANSYS的激光表面热处理对7075铝合金应力场影响的研究  

Effects of Laser Surface Heat Treatment on Stress Field in 7075 Aluminium Alloy Base on Solfware ANSYS

作　　者：彭丽蓉[1] 

机构地区：[1]重庆工业职业技术学院,重庆401120

出　　处：《铸造技术》2013年第8期1000-1002,共3页Foundry Technology

摘　　要：采用软件ANSYS创建了带有裂纹源的7075铝合金模型,模拟了不同激光表面热处理参数下合金的残余应力场。计算结果表明,当激光扫描区域距离裂纹源2mm时,裂纹源处产生最大的压应力;当扫描区域同裂纹源距离增加时残余压应力值呈下降趋势。The model of 7075 aluminium alloy with crack source was created by ANSYS, and the residual stress fields in the alloy model under different laser surface heat treatment processs were simulated and analyzed. The calculation results show that. when the distance of laser scanning area frown the crack source is 2 ram, the maximum compressive stress creates at crack source; when the distance increasing, residual compressive stress values show downward trend.

关 键 词：7075铝合金 激光-表面处理 模拟 残余应力 疲劳 

分 类 号：TG665[金属学及工艺—金属切削加工及机床]