301 軟鋼板のレーザ切断における最適加工条件

概要

論文の詳細を見る
Because it is relatively easy to cut thin mild steel plates by using a focused laser beam, the range of processing conditions is very wide. This fact means that the more time and cost are required to determine the optimum processing parameters before performing full-scale manufacturing. We studied the effect of processing parameters on the quality of products. The possibility of laser cutting is determined by the heat input per unit area of cutting surface. This value is about 5J/(mm)^2 for cutting mild steel assisted by pure oxygen gas. Heat input includes the effects of cutting speed, the duty of pulsed beam and thickness of plate. The roughness is small as the cutting speed exceeds 1000mm/min for all plates of different thickness. The doros and the width of cutting slit are generally increased with increasing the duty and decreasing cutting speed. These are able to be evaluated by heat input.
一般社団法人日本機械学会の論文
2003-08-15