Back to results
US 10,864,594 B2Granted
Gas-shielded arc welding method
AssigneesKobe Steel, Ltd., Mazda Motor Corporation
InventorsMinoru Miyata, Reiichi Suzuki, Masaaki Tanaka, Mitsugi Fukahori, Takashi Ogawa
Life of this patent
Estimating the term…
Abstract
A gas-shielded arc welding method includes feeding a consumable electrode via a welding torch and performing welding while flowing a shielding gas. The welding torch includes a nozzle. An inner diameter of the nozzle is 15 mm or more. A nozzle-base material distance between a tip of the nozzle and a material to be welded is 22 mm or less. A ratio expressed by (the inner diameter of the nozzle/the nozzle-base material distance) is 0.7 or more and 1.9 or less.
Claims13
A gas-shielded arc welding method, comprising:
- feeding a consumable electrode via a welding torch having a nozzle including an orifice;
- and
- welding a welding part of a material to be welded while flowing a shielding gas such that the nozzle shields the welding part from atmospheric air by using the shielding gas rectified by the orifice of the nozzle,
- wherein
- the consumable electrode contains S in an amount of 0.015 mass % or more based on an entire mass of the consumable electrode,
- the shielding gas is a mixed gas comprising 92% or more of Ar, the balance being at least one of carbon dioxide and oxygen, and inevitable impurities,
- an inner diameter of the nozzle is 15 mm or more,
- a nozzle-base material distance between a tip of the nozzle and the material to be welded is 22 mm or less, and
- a ratio of the inner diameter of the nozzle to the nozzle-base material distance is 0.7 or more and 1.9 or less.
6 more elements
Dependencies are inferred from the claim text.