Aluminum alloy round cast ingot bending method

The invention provides a bending method for an aluminum alloy round cast ingot. The bending method comprises the following steps that the aluminum alloy round cast ingot is heated and then subjected to heat preservation; carrying out quenching treatment on the aluminum alloy round cast ingot after heat preservation is completed; and after quenching is completed, the aluminum alloy round cast ingot is taken out, and after the aluminum alloy round cast ingot is cooled to the normal temperature, bending machining is conducted. According to the bending method for the aluminum alloy round cast ingot, the aluminum alloy round cast ingot is sequentially subjected to heating, heat preservation and quenching treatment, the bending performance of the aluminum alloy round cast ingot can be effectively improved, the aluminum alloy round cast ingot can be bent at the normal temperature, cracks are not prone to being generated, and the machining efficiency is improved. The method solves the problem that a large-diameter al