摘要
通过对激光脉冲作用期间和之后的等离子体行为以及激光"匙孔"行为进行研究,提出了激光诱导电弧耦合热源的放电机制。结果表明,激光"匙孔"和"匙孔"等离子体的形成是实现激光诱导电弧的重要条件,激光"匙孔"和电弧等离子体在激光脉冲作用消失之后均经历了一段时间才逐渐恢复至激光作用之前的状态,二者的延迟恢复相互促进,共同提高了激光诱导电弧的作用效果。在理论分析的指导下实现了镁合金的激光诱导电弧耦合热源高速高效优质焊接。
By studying the plasma behavior during and after the laser pulse impacts and the laser keyhole behavior,proposed the laser induced are coupling heat source discharge mechanism. Results showed that laser keyhole and the keyhole plasma was the key condition for realizing the laser induced arc. Laser keyhole and arc plasma after the laser pulse impacts experienced a period of time to recover the state before the laser impacts. The extended recovery between the two enhanced each other, and improved the laser induced arc effects. With the guide of the theoretical analysis,realized the magnesium alloy welding laser induced arc coupling heat source with high speed and high quality.
出处
《电焊机》
2015年第5期36-42,共7页
Electric Welding Machine