CN/EN

Speaker

Xuejun Zhang
Deputy Chief Engineer
AECC Bejing Institute of Aeronautical Materials
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【Abstract】

The report introduces the main methods and basic principles of additive manufacturing of aviation metal materials. The report summarizes a number of research results of the China Hangfa Additive Manufacturing Technology Innovation Center, and it is clear that pores, cracks, and non-fusion are the main defects of metal materials additive manufacturing. The microstructure characteristics, fracture characteristics, and the relationship between the microstructure and mechanical properties, the pore characteristics and the relationship between the micro-crack characteristics and the mechanical properties, the surface characteristics and treatment difficulties, the size effect of different alloys are introduced.


【Bio】

Zhang Xuejun, Deputy Chief Engineer and researcher, Beijing Institute of Aeronautical Materials, AVIC. Main research interests: weldability and structural welding process of aeronautical advanced metal materials; Aeronautical welding material design and manufacturing technology; Aviation advanced materials and structure additive manufacturing technology; Welding repair and reliability evaluation of key components of aircraft, engines and ground gas turbines. Presided over the restoration of more than 100 key components of more than 30 aircraft/engines/gas turbines, and repaired more than 50,000 parts. He presided over and participated in the compilation of such books as "Aviation arc Welding Technology", "Aviation Brazing Technology", "Advanced Aviation Material Welding Technology", "Maintenance and Evaluation Technology of Aviation Key Components", "Analysis and Selection of Large military transport aircraft Materials", "Status and Development of hot end Components of Aviation Engines and Gas Turbines". It has won 4 second prizes, 1 third prizes and 1 third-class merit from Chinese Society of Aeronautics and Astronautics, AVIC and China Aviation Development Science and Technology Progress. He has applied for more than 20 national and national defense invention patents.