摘要
传统的电弧焊工艺由于受到焊接速度和焊层厚度的制约,难以进一步提高焊接施工效率。激光-电弧复合焊将激光和电弧两种热源复合在一起,实现优势互补,为管道施工提供了一种新的焊接方法。激光-电弧复合焊速度快,熔深大,可以显著提高施工效率。国外多家研究机构在试验室内成功实现了管道全位置激光-电弧复合焊,但未能实现工业化应用。光纤激光器的发明为激光-电弧复合焊现场应用提供了可能。初步试验表明,光纤激光-电弧复合焊能够满足管道环焊缝焊接的要求,力学性能满足现行标准要求。
引文
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