Research on Welding Crack Control and Weld Strength Improvement Technology of 7075 Aluminum Alloy Structural Parts
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.
light weighthigh strengthhigh hardnesslayer tearing of weld
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