不同辅助气体对薄硅钢片的激光切割影响  

Laser Cutting Influence of Various Assistant Gas Affects the Thin Silicon Steel Sheets

作　　者：陈宇翔[1] 高亮[1] 

机构地区：[1]辽宁科技大学应用技术学院,辽宁鞍山114000

出　　处：《机械设计与制造》2017年第3期189-191,196,共4页Machinery Design & Manufacture

摘　　要：针对辅助气体影响激光切割现象进行研究。采用氧气、氮气、氩气作为辅助气体以300W的Nd:YAG脉冲激光切割35A470牌号的硅钢片。首先进行大量实验研究不同工艺参数对硅钢片切缝宽度及切割质量的影响,如采用不同的激光电源电流、激光脉宽、激光频率、加工速度、离焦量等参数对比分析,然后总结出这些工艺参数对激光切割硅钢片的影响规律,再研究不同保护气体对激光切割工艺参数的选择规律,最后得出使用不同保护气体的激光切割35A470牌号薄硅钢片的最佳工艺参数。Make a research about assistant gas impact on laser cutting. The article uses the pulse laser of 300W Nd：YAG to cut some silicon steel sheets of the mark 35A470 with the oxygen, nitrogen, argon as assistant gas. First of all, we make a large number of experiments to study the influence of various processing parameters alter the kerr width and quality of the silicon steel sheets, for example, using various laser current, pulse width, frequency, processing speed and defocusing distance to contrastive analysis. Then we summarize the rules of these parameters to laser cutting silicon steel sheets. Moreover we study the selection laws of various assistant gas to laser processing parameters. The last, we work out the values of the best parameters that laser cutting silicon steel sheets of the mark 35A470 with various assistant gas.

关 键 词：激光切割 薄硅钢片 辅助气体 工艺参数 YAG激光 切缝宽度 

分 类 号：TH16[机械工程—机械制造及自动化] TG485[金属学及工艺—焊接]