Flux-cored wire for welding different materials, method for laser welding of different materials, and method for MIG welding of different materials

摘要

A flux-cored wire for laser welding or MIG welding different materials, wherein the different materials are aluminum or an aluminum alloy material and a galvanized steel material. The flux-cored wire contains a cylindrical aluminum alloy sheath containing: aluminum, 0.8-1.9 mass % Si, at most 0.1 mass % Mn, 0.1 mass % Mg, and 0.1 mass % Fe; and a flux filled in a space within the sheath and containing 20-60 mass % cesium fluoride, wherein the percentage filling of the flux is 5-20 mass % with respect to the total mass of the flux-core wire.

主权项

1. A flux-cored wire, comprising:
a cylindrical aluminum alloy sheath comprising aluminum and, by mass % based on a total mass of the sheath,
Si: 0.8 to 1.9%,Mn: 0 to 0.1%,Mg: 0 to 0.1%,Fe: 0 to 0.1%; and a flux inside the sheath comprising cesium fluoride in an amount of 20 to 60% by mass, wherein a percentage of the flux inside the sheath is 5 to 20% by mass, based on a total mass of the wire.