“super-narrow gap laser multipass welding”的概念、定义、翻译、参考文献-科学参考

单词	super-narrow gap laser multipass welding
释义	super-narrow gap laser multipass welding Encyclopedia 工学激光焊接释 super-narrow gap laser multipass welding超窄间隙激光多层焊在4～6毫米的超窄间隙中，利用非接触的高亮度激光束作为热源，熔化工件侧壁和填充的焊丝形成焊接熔池，凝固后形成单层焊缝，进而通过多层激光填丝焊来完成全厚度焊缝的焊接方法。
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