铝合金CMT技术增材制造研究进展

Research Progress in Additive Manufacturing of Aluminum Alloy CMT Technology

铝合金作为一种加工性能优良、导热性好且质量轻的金属材料,在工业领域应用广泛。冷金属过渡焊接技术(CMT)作为一种低热量输入、无飞溅的焊接技术,非常适合铝合金的增材制造,铝合金CMT技术已成为增材制造技术的研究热点。通过综述近年来国内外学者在铝合金CMT技术焊道成形、组织性能、气孔缺陷方面的研究成果,展望了未来CMT技术的发展方向。

As a kind of metal material with excellent machining pertormance,good thermal conductivity and light weight,aluminum alloy has been widely used in the industrial field.Cold metal transition welding technology(CMT),as a low heat input and no spatter welding technology,is very suitable for additive manufacturing of aluminum alloy.Aluminum alloy CMT technology has become a research hotspot in additive manufacturing technology.Based on the review of the research achievements of domestic and foreign scholars in recent years in the aspects of weld bead formation,microstructure and porosity defects of aluminum alloy CMT technology,the future development direction of CMT technology was prospected.