7075 aluminum alloy is a cold-processed forged alloy with high strength, much better than mild steel. 7075 is one of the strongest alloys commercially available. General corrosion resistance, good mechanical properties and anodic reaction. The finer grain size results in better deep drilling performance, increased tool wear resistance and more distinctive thread rolling. Zinc is the main alloy element in 7075. Adding magnesium to an alloy containing 3%-7.5% zinc can form Mgzn2 with significant strengthening effect, making the heat treatment effect of this alloy far better than that of aluminum-zinc binary alloy. Increasing the zinc and magnesium content in the alloy will further increase the tensile strength, but its ability to resist stress corrosion and spalling corrosion will decrease. After heat treatment, it can achieve very high strength properties. 7075 materials generally add a small amount of copper, chromium and other alloys. Among them, 7075-T651 aluminum alloy is particularly top-grade and is known as the best product among aluminum alloys. It has high strength and is far superior to any mild steel. This alloy also has good mechanical properties and anodic reaction.