Inventors:
James M. Keegan - Troy OH
Sundaram Nagarajan - Fairborn OH
Roger A. Daemen - Troy OH
Joseph Bundy - Piqua OH
Assignee:
Illinois Tool Works Inc. - Glenview IL
International Classification:
B23K 923
B23K 35362
Abstract:
A metal-core weld wire usable for gas shielded arc welding gapless joints on low carbon and low alloy galvanized and galvanealed steels. The metal-core weld wire includes a low carbon steel sheath surrounding a core composition. In one embodiment, the low carbon steel sheath includes, by total weight of the metal-core weld wire, between approximately 0. 01-0. 03% C, and the core composition includes, by total weight of the metal-core weld wire, between approximately 0. 05-0. 20% Ti, between approximately 0. 05-1. 00% Nb, Fe powder, and Mn to the extent that the metal-core weld wire includes between approximately 0. 1-1. 0% Mn wherein the metal-core weld wire includes between approximately 0. 1-1. 0% Si. The core composition is, by total weight of the metal-core weld wire, between approximately 0. 001-12. 0%. The metal-core weld wire provides, at weld rates up to 150 cm/min, reduced arc ionization potential and spatter, and improved arc stability and shielding.