Laser fusion cutting method of a metal workpiece comprises melting a kerf in the workpiece using a laser beam whose diameter at the working point is selected so that the molten material is driven from the kerf without a cutting gas

摘要

Laser fusion cutting method of a metal workpiece (1) comprises melting a kerf (3) in the workpiece using a laser beam (2) whose diameter (D) at the working point is selected so that the molten material is driven from the kerf without a cutting gas.