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Method and apparatus for the laser cutting of stainless steel, coated steel, aluminium or aluminium alloys with a bifocal optical component
Method and apparatus for the laser cutting of stainless steel, coated steel, aluminium or aluminium alloys with a bifocal optical component
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机译:用于激光切割具有双焦点光学组件的不锈钢,涂层钢,铝或铝合金的方法和设备
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摘要
Method and apparatus for cutting a workpiece made of stainless steel, coated steel, aluminum or aluminum alloy by the use of a transparent or reflecting optical means for focusing a laser beam and of an assist gas for said laser beam. The optical means is of the multifocus type and is chosen from lenses, mirrors and combinations thereof. The assist gas is oxygen or a nitrogen/oxygen mixture containing at least 90% nitrogen. The method of the invention makes it possible to increase the cutting performance by 40% compared with a conventional laser cutting method.
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