Manufacturing method of aluminum alloy rivet wire for aerospace

The invention relates to a manufacturing method of an aluminum alloy rivet wire, in particular to a manufacturing method of an aluminum alloy rivet wire for aerospace, and aims at solving the problems that an existing rivet wire is low in tensile strength, regulated non-proportional extension strength, post-fracture percentage elongation and anti-shearing strength. The method comprises the steps that firstly, an aluminum alloy solution is prepared; secondly, an alloy cast bar is cast; thirdly, the cast bar is cut off according to the fixed size; fourthly, the cast bar is turned for descaling; fifthly, homogenizing annealing is carried out on an aluminum alloy ingot; sixthly, the ingot is heated; seventhly, the aluminum alloy wire is formed through extrusion; eighthly, the middle of the wire is annealed; and ninthly, cold-drawing deformation is carried out, and the aluminum alloy rivet wire is manufactured. The tensile strength of an H13 state wire rod of the obtained aluminum alloy rivet wire is not smaller than 205 MPa; the tensile strength of a T4 state wire rod of the aluminum alloy rivet wire is not smaller than 380 MPa, the regulated non-proportional extension strength of the T4 state wire rod of the aluminum alloy rivet wire is not smaller than 220 MPa, the post-fracture percentage elongation of the T4 state wire rod of the aluminum alloy rivet wire is not smaller than 10%, and the anti-shearing strength of the T4 state wire rod of the aluminum alloy rivet wire is not smaller than 225 MPa. The method is applied to machining and manufacturing the aluminum alloy rivet wire for aerospace.