The embodiment of the invention provides a thin-wall
metal material
thinning method which comprises the steps that 1, the
laser spot interval and the feeding frequency are calculated according to
laser scanning parameters, and the
laser scanning parameters comprise the feeding interval; 2, the thin-wall
metal material component is obtained, and a to-be-machined face of the thin-wall
metal material component is subjected to
laser scanning according to the
light spot interval to form a plurality of first-round micropores which are arranged at intervals; according to the
light spot spacing, the feeding spacing and the feeding times, multiple rounds of circulating
laser scanning are conducted on the to-be-machined face in sequence so that gaps between the first round of micropores can be filled, and a thin-wall metal material component with a loose modified layer is obtained; and 3, the loose modified layer is removed, so that
thinning of the thin-wall metal material component is achieved. According to the embodiment, the
adverse effect of heat accumulation on the workpiece in the laser
machining process can be reduced while the thin-wall metal material component is thinned, the deformation resistance of the ultra-thin workpiece is improved, and the
surface flatness of the workpiece is guaranteed.