Design and development of technology and technological equipment for manufacture of the aerospace systems using the electron beam welding method

The paper considers a method for joining the parts of a liquid rocket engine gas path by the electron beam welding. It presents design of a special mandrel for the welding operation. Results of the work performed ensure precise positioning of the grid and ring in the gas path welding. Using the special equipment makes it possible to exclude alterations in the shape and size of parts exposed to temperature effects during the welding process. Experimental work was performed on welding the gas path on a simulator, and a micro-section of the resulting welded joint was studied. The results obtained allow improving the technological process by introducing the progressive equipment and welding modes into production. In the issue, the necessary requirements for the product determined in the design documentation are ensured, defects in the welding process are excluded, and the human factor influence is reduced in the welding operations. Results of the research are making it possible to expand the scope of electron beam welding for the mechanical engineering products.
EDN: MCLXWF, https://elibrary/mclxwf

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