7075铝合金结构件焊接裂纹控制及焊缝强度提高工艺技术研究  

Research on Welding Crack Control and Weld Strength ImprovementTechnology of 7075 Aluminum Alloy Structural Parts

作　　者：胡战明 安普光[2] 焦永明 周凯 Hu Zhanming;An Puguang;Jiao YongMing;Zhou Kai(Inner Mongolia First Machinery Group Co.,LTD.;Baotou Vocational&Technical College,Baotou,Inner Mongolia 041035)

机构地区：[1]内蒙古第一机械集团股份有限公司,内蒙古包头041035 [2]包头职业技术学院,内蒙古包头041035

出　　处：《包头职业技术学院学报》2024年第4期8-11,共4页Journal of Baotou Vocational & Technical College

摘　　要：7075铝合金具有强度高、硬度高和良好的机械性能,它属于Al-Zn-Mg-Cu系超硬铝,广泛应用于航空工业和制造飞机结构等高应力结构件。随着轻量化装备的研制,有一些结构件采用该铝合金制造,目的是利用该铝合金重量轻、强度高的特性,但是在焊接生产中出现了焊缝层状撕裂和结构变形矫正焊缝开裂现象,极大影响该结构的使用性能。7075 aluminum alloy has high strength,high hardness and good mechanical properties.It belongs to Al-Zn-Mg-Cu super-hard aluminum and is widely used in the aviation industry and the manufacture of high-stress structural parts such as aircraft structures.With the development of lightweight equipment,some structural parts are made of the aluminum alloy.The purpose is to pursue the characteristics of light weight and high strength of the aluminum alloy.However,in the welding production,the phenomenon of weld layer tearing and structural deformation correction weld cracking occurs,which greatly affects the performance of the structure.

关 键 词：重量轻 强度高 硬度高 焊缝层状撕裂 

分 类 号：TG1[金属学及工艺—金属学]