Key Technological Parameters of Laser Cutting for Stainless Steel

Abstract

Effect of temperature to associated thermal physical characteristics is analyzed by establishing laser cutting model for stainless steel. Experiment shows the position of focus has an effect on cutting quality. Perfect positions of focus for different thickness are advanced. On this basis, applying the law of conservation of energy, where the total heat absorbed is equal to the sum of absorbed by melting and lost by conductive, heat onduction equation is set up. The function relation among cutting speed, thickness of plate and power is defined, which is verified to get perfect cutting quality in TRUMPF L3030. The formulations provide theoretical and practical support for actual laser cutting of stainless steel.