Method for manufacturing aluminum alloy bar for rail wagon body rivets

The invention discloses a method for manufacturing an aluminum alloy bar for rail wagon body rivets, which relates to a method for manufacturing an aluminum alloy bar. The invention solves the problem that the rivets, which are made of bars made by using the existing method, easily crack when riveting the pier, thereby failing to satisfy the railway transportation safety requirements after the railway transportation speeds up. The method is realized in the following way: weighing Si, Fe, Cu, Mn, Mg, Cr, Zn, Ti and Al according to the mass percent of the alloy; melting the raw materials to cast round aluminum alloy cast ingots; and uniformly annealing the round aluminum alloy cast ingots, carrying out extruding, cold-drawing, quenching and aging on the annealed round aluminum alloy cast ingots to obtain the aluminum alloy bar for rail wagon body rivets. The aluminum alloy bar for rail wagon body rivets in the invention is suitable for manufacturing rail wagon body rivets.