鋁合金電弧預(yù)熔絲激光焊工藝特性研究
發(fā)布時間:2018-11-08 10:33
【摘要】:提出了基于電弧預(yù)熔絲的激光焊方法,研究了入射能量對焊絲熔化狀態(tài)以及焊縫成形的影響,進一步對焊接過程的工藝適應(yīng)性進行了分析。結(jié)果表明,當(dāng)焊接電流較小時,焊絲能穩(wěn)定地熔化、填充進熔池中,增大焊接電流有利于增加焊絲前端的熔化長度;增加激光功率對焊絲熔化量無影響。電弧預(yù)熔絲激光焊方法可降低焊縫氣孔率,對裝配間隙具有很好的適應(yīng)性。
[Abstract]:A laser welding method based on arc premelting wire is proposed. The influence of incident energy on the melting state and weld forming of welding wire is studied. The process adaptability of welding process is analyzed. The results show that when the welding current is small, the wire can melt stably and be filled into the weld pool. The increase of welding current is beneficial to increase the melting length of the front end of the wire, and the increase of laser power has no effect on the melting amount of the wire. Laser welding with arc premelting wire can reduce the porosity of welding seam and has good adaptability to assembly clearance.
【作者單位】: 華北水利水電大學(xué)機械學(xué)院;哈爾濱工業(yè)大學(xué)先進焊接與連接國家重點實驗室;
【基金】:國家自然科學(xué)基金(51175115) 水利部科技推廣計劃項目(TG1420) 華北水利水電大學(xué)高層次人才科研啟動基金項目
【分類號】:TG456.7
本文編號:2318203
[Abstract]:A laser welding method based on arc premelting wire is proposed. The influence of incident energy on the melting state and weld forming of welding wire is studied. The process adaptability of welding process is analyzed. The results show that when the welding current is small, the wire can melt stably and be filled into the weld pool. The increase of welding current is beneficial to increase the melting length of the front end of the wire, and the increase of laser power has no effect on the melting amount of the wire. Laser welding with arc premelting wire can reduce the porosity of welding seam and has good adaptability to assembly clearance.
【作者單位】: 華北水利水電大學(xué)機械學(xué)院;哈爾濱工業(yè)大學(xué)先進焊接與連接國家重點實驗室;
【基金】:國家自然科學(xué)基金(51175115) 水利部科技推廣計劃項目(TG1420) 華北水利水電大學(xué)高層次人才科研啟動基金項目
【分類號】:TG456.7
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