自动流量平衡阀过流曲线激光切割工艺  

Laser Cutting Flow Curve of Automatic Flow Control Valves

作　　者：李淑玉[1] 田新国[2] 贺敬地[2] 刘超[2] 

机构地区：[1]青岛理工大学汽车与交通学院,山东青岛266033 [2]青岛理工大学工程训练中心,山东青岛266033

出　　处：《中国激光》2011年第10期79-83,共5页Chinese Journal of Lasers

摘　　要：采用Nd:YAG激光器切割自动流量平衡阀过流曲线,以切缝宽度、切口表面粗糙度和熔渣量作为衡量指标,研究输出电流、扫描速度、焦点位置、辅助气体种类和压力对自动流量平衡阀过流曲线切割质量的影响。获得了较为理想的切割工艺参数:输出电流为175 A,脉冲宽度为0.3 ms,脉冲频率为70 Hz,扫描速度为40 mm/s,氧气压力为1.0 MPa,离焦量为0。采用该工艺参数,切割出了高质量的过流曲线。The processing techniques including output current,scanning speed,defocusing distance,auxiliary gas species and pressure,which influence the quality of the flow curve,have been studied with the Nd：YAG lasers.The cutting quality is measured by the kerf width,surface roughness of the incision and slag quantity.The best processing parameters have been gained with the analyses and experiments.The high quality flow curve has been cut with the output current of 175 A,pulse width of 0.3 ms,pulse frequency of 70 Hz,scanning speed of 40 mm/s,defocusing distance of 0 and oxygen gas pressure of 1.0 MPa.

关 键 词：激光技术 激光切割 加工工艺 空间曲线 

分 类 号：TN249[电子电信—物理电子学] TG485[金属学及工艺—焊接]