(1. 銀邦金屬復(fù)合材料股份有限公司，江蘇省金屬層狀復(fù)合材料重點(diǎn)實(shí)驗(yàn)室，無錫 214145； 2. 無錫銀邦防務(wù)科技有限公司，無錫 214145)
摘 要: 結(jié)合7xxx系鋁合金的焊接特點(diǎn)，介紹7xxx系鋁合金焊接焊絲的選擇與優(yōu)化，闡述雙絲-MIG焊、激光-MIG復(fù)合焊、攪拌摩擦焊3種焊接新方法，與傳統(tǒng)焊接方法相比，它們在7xxx系鋁合金焊接上頗具優(yōu)勢和發(fā)展前景。通過合金化進(jìn)行7xxx系鋁合金母材和焊絲的優(yōu)化設(shè)計(jì)、開發(fā)新的焊接方法是未來鋁合金焊接領(lǐng)域的重要研究方向。
關(guān)鍵字: 7xxx系鋁合金; 焊接; 焊絲選擇; 焊接方法
（1. Yinbang Clad Material Company Limited, Jiangsu Key Laboratory for Clad Materials, Wuxi 214145, China; 2. Yinbang Defense Technology Company Limited, Wuxi 214145, China）
Abstract:The characteristics of welding for 7xxx series aluminum alloys were combined, and the selection and optimization of wires were introduced. Three new welding methods, such as double wire MIG welding, laser-MIG hybrid welding and friction stir welding, were stated. Compared with traditional welding methods, the three new methods have superiority and foreground in the welding of 7xxx series aluminum alloys. Alloying optimization design of base metal and wire for 7xxx series aluminum alloys, developing of new welding method are the important research direction in the future.
Key words: 7xxx series aluminum alloy; welding; selection of wire; welding method
