惯性摩擦焊在商用航空发动机中的应用与研究现状

Application and Research Status of Inertia Friction Welding in Commercial Aeroengine

惯性摩擦焊作为一种典型固相焊接工艺,因其优异的焊接工艺性能,已广泛应用于国外先进航空发动机的风扇、压气机及涡轮等核心转动部件的焊接制造,代替了原始的螺栓连接结构,有效降低了制造成本,并减轻了发动机质量,提高了推重比。目前,国内外学者针对航空发动机用钛合金、高温合金及粉末高温合金的惯性摩擦焊接工艺和数值模拟等技术进行了一系列研究,通过分析总结国内外研究和应用现状,指出国内外在惯性摩擦焊技术方面的差距,以推动国内加快惯性摩擦焊接技术的研究工作,提升惯性摩擦焊接技术研究水平,支撑先进航空发动机的研制。

Inertia friction welding,as a typical solid phase welding process,has been used more often in welding fan,com‐pressor and turbine rotating components of foreign advanced aircraft engine because of excellent welding performance.It re‐places the original bolted structure,effectively reduces the manufacturing cost,reduces the engine weight and improves the thrust-to-weight ratio.At present,the foreign and domestic scholars research the inertia friction welding process and numeri‐cal simulation of aircraft engine with titanium alloy,high temperature alloy and powder metallurgy superalloy.The gap of in‐ertia friction welding technology is pointed out by analyzing and summaring the research and application status at foreign and domestic.It will promote the domestic research work of inertial friction welding technology,improve the research level of inertial friction welding technology,and support the development of advanced aero-engine.