This article investigates the microstructure and properties of over-aged and cold-drawn 7050 aluminum alloy wire with different cold drawing deformation.The results show that with the increase of cold deformation,the wire grains are elongated,and the yield strength,tensile strength,and shear strength all increase.But the reinforcement degree of cold-drawn wire is greater than that of over-aged one.The more uniform and fine the grains are,the less likely the wire material is to crack during cold heading.
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