摘要
电弧增材制造作为金属增材制造技术的一个重要分支,以电弧为载能束采用逐层堆积的方式制造金属构件,因其制造成本低、成形效率高、材料利用率高等优势,在航空航天、国防领域具有广阔的应用前景。沉积层热输入与丝材熔化效率的解耦控制是推进电弧增材制造技术高效、高质量发展与应用必须解决的关键科学与技术难题。分析了热输入与成形效率强耦合的主要原因,重点阐述现有的高效成形方法、热积累控制方法、低热输入热源的研究进展与不足,指出了未来电弧增材制造低热输入高效成形的主要发展方向。
As an essential branch of metal additive manufacturing,wire and arc additive manufacturing(WAAM),using an arc as the energy beam to melt metal wire layer by layer,has shown broad application prospects in aerospace and defense fields due to its advantages of low manufacturing cost,high forming efficiency,and high material utilization.The decoupling control of heat input of deposited layers and wire melting efficiency is a key scientific and technical problem that must be solved to promote the efficient and high-quality development and application of WAAM.The main reasons for the strong coupling of forming heat input and forming efficiency are analyzed.Research progress and shortcomings of existing efficient forming methods,heat accumulation control measures,and low heat input heat sources are highlighted.The main development direction of low heat input and efficient forming for wire and arc additive manufacturing in the future is pointed out.
作者
张含嫣
熊俊
陈勇
陈辉
ZHANG Hanyan;XIONG Jun;CHEN Yong;CHEN Hui(Southwest Jiaotong University,Chengdu 610031,China;AVIC Chengdu Aircraft Industrial(Group)Co.,Ltd.,Chengdu 610092,China)
出处
《电焊机》
2023年第2期1-11,共11页
Electric Welding Machine
基金
国家自然科学基金资助项目(62173280,51975491)
四川省自然科学基金项目(2023NSFSC1956)。
关键词
电弧熔丝增材制造
热输入
成形效率
热积累
wire and arc additive manufacturing
heat input
deposition rate
heat accumulation
