Welding distortion c ontrol technology on aircraft engine inlet case welding assembly

航空发动机进气机匣焊接组件焊接变形控制技术 Welding distortion c ontrol technology on aircraft engine inlet case welding assembly 陈争新 CHEN Zhengxin 1 first-author 海军装备部 海军装备部 Naval Equipment Department Naval Equipment Department 进气机匣焊接组件是我国某新型航空发动机中的关键承力零件,由内机匣、外机匣和支板等零件焊接而成。焊接制造和焊接修复过程中产生的焊接变形问题,已成为制约零件正常使用的瓶颈难题。本文通过优化焊接参数、细化焊接过程控制、改进焊接夹具、借助热处理校形、采用局部修复和热处理技术等方法,突破了零件研制瓶颈,大幅降低零件焊接变形,实现了对进气机匣组件焊接变形的控制。本文对航空发动机复杂焊接机匣典型加工工艺进行研究和推广,为类似结构零件的焊接及变形控制提供了参考和借鉴,对提升复杂焊接机匣加工制造能力起着积极作用。 As a key force part in a civil new typed aircraft engine, the inlet case consists of welding assemblies of outlet case, inlet one and supporting panel. Distortion during the welding manufacturing and welding recovery problem has become the critical difficulty which limits the normal use of parts. In the essay, some methods, such as welding parameters optimization, welding process control refinement, improving welding fixtures, heat-treatment shaping, local recovery and heat-treatment technology, are promoted to settle the difficulty of part development, and largely reduced the parts during welding distorting, realizing welding distortion control of inlet case assembly. This paper has important role on complicated welding inlet case processing ability improvement for equivalent structure parts welding and distortion control, and raised typical processing technology to research and promote for the complicated welding inlet case on the aircraft engine. 进气机匣 电子束焊接 热处理校形 局部修复 变形控制 inlet case electro-beam welding heat-treatment shaping local recovery distortion control V263;TG404 2022-03-08 12 51