Abstract:
The finished product of mixer lobe components in aircraft engine was composed of several surface parts(sheet titanium alloy special stamping parts) by blank welding. Due to its complex and irregular curved shape, it was difficult to assemble, guarantee welding quality and control welding deformation. To solve the above problems and difficulties, The authors’ three companies in the paper developed a automatic argon arc welding fixture for mixer lobe components in aircraft engine, hand in hand together. The system composition, the structure and characteristics of the automatic argon arc welding fixture for mixer lobe components were introduced together with its working principle and operation process in the process of assembly welding. The results showed that the fixture could be used to assemble several single pieces continuously at one time. The fixture could effectively control the deformation of welding process. After welding, the size and surface quality of the finished product met the technical requirements, and could achieve mass production.