LASER CUTTING METHOD AND APPARATUS FOR STAINLESS STEEL, COATED STEEL, ALUMINUM, OR ALUMINUM-ALLOY BY USING TWO FOCUS OPTICAL PART

摘要

PROBLEM TO BE SOLVED: To improve a laser cutting method for stainless steel, coated steel, aluminum, or aluminum alloy. SOLUTION: The laser cutting apparatus cuts a sample comprising stainless steel, coated steel, aluminum, or aluminum alloy, which uses multi-focus type transparent or reflecting optical means 1 to focus laser beams and assist gas composed of oxygen or oxygen/nitrogen mixture.