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US 2026/0216825 A1Published application
Method for laser welding and method for manufacturing laser-welded joint
AssigneeJfe Steel Corporation
InventorsAsato HARA, Katsutoshi TAKASHIMA
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Abstract
A method for laser welding that includes: cutting each of two steel plates to be butt-welded by using a cutting laser beam; and butt-welding the two steel plates cut by using the cutting laser beam, wherein the cutting cuts such that an angle of a cut surface of a first steel plate of the two steel plates is θ (deg), an angle of a cut surface of a second steel plate of the two steel plates is 180-θ (deg) and the θ satisfies 55.0≤θ<70.0 (1).
Claims18
A method for laser welding comprising:
- cutting each of two steel plates to be butt-welded by using a cutting laser beam;
- and
- butt-welding the two steel plates cut by using the cutting laser beam, wherein
- the cutting cuts such that an angle of a cut surface of a first steel plate of the two steel plates is θ (deg), an angle of a cut surface of a second steel plate of the two steel plates is 180-θ (deg) and the θ satisfies 55.0≤θ<70.0 (1),
- when the two steel plates to be butt-welded have different plate thicknesses, the angle of the cut surface of a steel plate of the two steel plates having a thinner plate thickness is θ (deg), and
- when both steel plates of the two steel plates to be butt-welded have an identical plate thickness, the angle of the cut surface of either steel plate of the two steel plates is θ (deg).
3 more elements
Dependencies are inferred from the claim text.