CAJ | 학술논문

采用高功率Nd3＋∶YAG脉冲激光器精密切割不锈钢薄板，研究激光切割工艺参数对切割表面质量及切缝宽度的影响。单因素实验结果证明：扫描速度增加，切缝宽度明显减小；切缝宽度随扫描速度、激光段电流、脉冲频率以及脉冲宽度的增加而加大；脉冲频率增加，可以提高加工质量，提高极限切割速度。双因素实验结果证明：在输出功率和脉冲宽度一定时，脉冲频率增加，切缝宽度减小；在输出功率和脉冲频率一定时，脉冲宽度增加，切缝宽度减小。
채용고공솔Nd3＋∶YAG맥충격광기정밀절할불수강박판，연구격광절할공예삼수대절할표면질량급절봉관도적영향。단인소실험결과증명：소묘속도증가，절봉관도명현감소；절봉관도수소묘속도、격광단전류、맥충빈솔이급맥충관도적증가이가대；맥충빈솔증가，가이제고가공질량，제고겁한절할속도。쌍인소실험결과증명：재수출공솔화맥충관도일정시，맥충빈솔증가，절봉관도감소；재수출공솔화맥충빈솔일정시，맥충관도증가，절봉관도감소。
Using high power Nd3+∶YAG pulse laser for precision cutting stainless sheet,the effects of the laser cutting technolog-ical parameters on cutting surface quality and joint-cutting width were studied.The data of single factor experiment prove:with the in-creasing of scanning velocity,the joint-cutting width decreases;the width increased with the increasing of scanning velocity,laser cur-rent,impulse frequency and impulse width;the increasing of impulse frequency may improve the processing quality and ultimate cut-ting speed.The data of two-factors experiment prove:when the output power and impulse width are fixed,increasing impulse frequency will lead to decrease of the joint-cutting width;when the output power and impulse frequency are fixed,increasing impulse width will lead to decrease of the joint-cutting width.