BIMETAL WIRE ARC ADDITIVE MANUFACTURING METHOD BASED ON MIG/MAG HEAT SOURCE

摘要

A bimetal wire arc additive manufacturing method based on a MIG/MAG heat source, for performing linear alternate weaving cladding with a twin-wire MIG/MAG welding machine as a heat source and with welding wire A and welding wire B in a bimetal welding wire as filling materials for cladding. The method comprises: performing slicing on a product to be printed using additive manufacturing software; and after slicing, performing additive processing for odd slices in a mode of performing cladding on each segment of additive welding pass along an x-axis direction, wherein in each segment of additive welding pass, a welding wire A and a welding wire B perform alternate cladding, and performing additive processing for even slices in a mode of performing accumulated cladding on each segment of additive welding pass along a Y-axis direction, wherein in each segment of additive welding pass, the welding wire A and the welding wire B perform alternate cladding. The method performs linear alternate weaving cladding using two different metal welding wires, such that a constitution structure of an obtained product has high strength, hardness, and crack-arrest capability, and has high impact resistance bearing performance.