The invention provides a low-power
laser-induced TIG
electric arc-based additive manufacturing method of a stainless steel structural member and a manufacturing
system. According to the method, a low-power
laser and a TIG
electric arc are taken as a composite heat source, an included angle relationship among a
welding gun, the
laser and a substrate is arranged according to a
welding environment, astainless steel
welding wire is fed into a
molten pool through an additional wire feeding device, is stably melted and spread on the treated substrate, surfacing is carried out according to a plannedroute, and a stainless steel workpiece with a required structure is formed by accumulating layer-by-layer. According to the method and the
system, the process of
electric arc additive manufacturing is effectively improved through the addition of the low-power laser, the electric
arc stability is increased, the irregular flowing of the
molten pool is reduced, the roughness of a side wall of an additive wall body is effectively improved, the forming quality is improved, the
processing allowance is reduced, and the
utilization rate of a material is increased; and the method and the
system have the characteristics of high efficiency and energy saving, and speediness, high precision, short period, low cost and the like are achieved when the complicated large-scale member is manufactured by themethod and the system.