Manufacturing method of aluminum alloy circular track for welding robot

The invention discloses a manufacturing method of an aluminum alloy circular track for a welding robot, and relates to the technical field of aluminum alloy machining. The manufacturing method comprises the following operation steps: S1, material selection: selecting a plate-shaped aluminum alloy, and the thickness of the aluminum alloy is greater than 5% of the width of the circular track; S2, shape cutting is conducted, and the finish machining allowance is reserved during cutting; S3, track finish machining is carried out, and the finish machining sequence comprises punching, outer circle machining, inner circle machining and knurling; S4, aging treatment; S5, carrying out a first surface treatment process; S6, carrying out a secondary surface treatment process; S7, water washing treatment is conducted, specifically, the circular track is soaked in purified water, and a passivation solution on the surface of the circular track is removed; and S8, punching, tapping and installing a thread sleeve. The utiliz