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US 2022/0016732 A1Published application
Method of laser cutting a steel
AssigneeArcelorMittal
InventorMurali MANOHAR
Life of this patent
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Abstract
A method for laser cutting a steel alloy sheet/plate having a composition including, in wt. %: C: 0.0-0.29; Mn: 0.50-1.35; P: 0.04 max; S: 0.05 max; Si: 0.40 max; Cr: 0.5-0.75, and the remainder being iron and impurities, the steel alloy is free from intentional additions of Cu and Ni and containing less than 0.05% of total cumulated amounts of Cu and Ni.
Claims11
1-10. (canceled)
A method for laser cutting a steel alloy sheet/plate, the method comprising the steps of:
- providing a steel cutting laser;
- providing a laser cuttable steel alloy sheet/plate, the steel alloy sheet/plate having a composition comprises, in wt. %:
- C:
- 0.01-0.29;
- Mn:
- 0.50-1.35;
- P:
- 0.04 max;
- S:
- 0.05 max;
- Si:
- 0.40 max;
- Cr:
- 0.5-0.75, and a remainder being iron and impurities, the steel alloy being free from intentional additions of Cu and Ni and containing less than 0.05% of total cumulated amounts of Cu and Ni;
- directing a laser beam from the steel cutting laser to the laser cuttable steel alloy sheet/plate;
- and
- cutting said laser cuttable steel alloy sheet/plate with the laser beam.
14 more elements
Dependencies are inferred from the claim text.