Specialists of the United Engine Corporation (UEC, part of Rostec) have begun using a rotary friction welding unit in the production of aircraft engines. This was announced by Almaz Miniakhmetov, leading engineer of the Scientific Research Institute of Technology and Production Organization of Engines (NIID).
This is the first equipment in Russia for joining parts made of superalloys with a diameter of up to 400 mm. It was manufactured according to the technical specifications of NIID.
According to Miniakhmetov, friction welding is used in the manufacture of the high-pressure compressor rotor of the promising PD-35 engine.
In the unit, with a strong compressive force and rotation, the parts are joined to each other without gaps or metal destruction.
The finished structures are lighter, and the connection of parts in them is strong and reliable.
About PD-35
PD-35 is the basic engine of the family of turbofan engines, which is designed for wide-body aircraft. Its characteristics are checked on an open test stand.
PD-35 has already passed the first stage of testing. During 50 starts, the engine created a thrust of more than 35 tons.
In the second stage, UEC specialists are evaluating the operation of high-pressure compressor blades and high-pressure turbine blades developed from new Russian materials.
