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镁合金是航空航天领域应用最为广泛的轻合金之一。随着镁合金应用的不断深入,对具有高精度、低能耗、高效率特征的绿色焊接技术提出了迫切需求,并成为镁合金焊接制造发展的重要方向。针对上述需求,围绕镁合金激光诱导电弧复合焊接技术,镁合金活性高效焊接技术以及镁合金与异种金属的连接技术展开系统研究。采用激光诱导电弧复合焊接技术成功实现了镁合金低能耗高效焊接制造,与传统电弧焊接相比显著提高了焊接制造效率,降低了焊接制造能耗。采用激光胶焊技术及激光-电弧复合焊接技术实现了镁合金与铝合金及镁合金和钢铁的高性能焊接制造。上述绿色焊接制造技术研究成果为实现航空镁合金轻量化结构件的设计和制造提供了有力支撑。
Magnesium alloy is one of the most widely used light alloys in the aerospace field. With the deepening of application of magnesium alloy, the urgent need for green welding technology with high precision, low energy consumption and high efficiency has become an important direction for the development of magnesium alloy welding. In response to the above requirements, the systematic research has been conducted on the laser-induced arc hybrid welding of magnesium alloys, the active and efficient welding of magnesium alloys, and the connection between magnesium alloys and dissimilar metals. The laser-induced arc composite welding technology successfully achieved the low energy consumption and high efficiency magnesium alloy welding manufacturing, compared with the traditional arc welding significantly improves the welding manufacturing efficiency and reduce the energy consumption of welding manufacturing. The use of laser welding technology and laser - arc hybrid welding technology to achieve magnesium alloy and aluminum alloy and magnesium alloy and steel high-performance welding manufacturing. The above research results of green welding manufacturing technology provide a strong support for the design and manufacture of lightweight structural parts of aviation magnesium alloy.