激光焊接原理及实践的应用.ppt

激光焊接Lasers Welding;激光 LASER;参考资料 References;请记住….. Remember…..;光 Light;光的吸收和颜色Absorption and Color;我们为什么需要激光？Why do we need Lasers?;Light and Lasers;Light and Lasers;激光的聚焦Focusing of Lasers;激光的种类Types of Lasers;连续光纤激光Continuous Wave Fiber Lasers;脉冲YAG激光（焊接）Pulsed YAG Lasers (Welding); 脉冲打标激光Pulsed Marking Lasers;Galvo-光学器件Galvo-Optics;激光频率Laser Frequencies;脉冲YAG激光焊接典型示意图Typical Layout for Pulsed YAG Welding Lasers;聚焦高度和焦点尺寸Focus height and spot size;Time Share;;;Optical Fibers光学纤维;SI vs. GI单模式 vs分级模式;Fiber Input Alignment光纤输入排列;Spot Size with Fiber光点直径带光纤;Laser Safety;;Collateral Damage;Fire Hazard火灾;Laser-Material Interaction;Initial Reflectivity of Metals金属的初始反射率;;Absorptivity of Materials材料的吸收率;Laser Welding镭射焊接;Configurations结构;Configurations;Configurations;Annular Welds;Small Volume Welds;Pressure Relief卸压;Shield Gas ;Shield Gas ;Shield Gases for YAG Lasers;Soot;Shield Gas Configuration;Pulsed YAG 脉冲钇铝石榴石;Pulsed YAG脉冲钇铝石榴石;Pulsed YAG脉冲钇铝石榴石;Effect of pulse time on weld size脉冲时间对焊接尺寸的影响;Effect of pulse time on penetration脉冲时间对焊接尺寸的影响;Pulse Shaping脉冲形状;Weld Cracking焊接破裂;Laser Features: Pulse Shape雷射特征:脉冲形状;Pulse Shaping脉冲形状;Focus Height 焦点高度;Pulse Overlap脉冲交叠;Pulse Overlap脉冲重叠;Laser Weld Quality雷射焊接 质量;Laser Weld Quality雷射焊接质量;Weld Section Analysis焊接部分分析;X-ray AnalysisX-RAY 分析;X-ray images of good weldsX-RAY 中好的焊接;Laser Maintenance雷射维护;Energy Meters能量计;Spot size and shape黑点的大小和形状;Fiber, Lens, and Lens Cover光纤,透镜和透镜盖;Machine Alignment机齐边器;Summary总结