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Yu. V. Zamaraeva, А. V. Razinkin, E. I. Buribaev, А. V. Ponomarev, Е. G. Dymshakova

IMPROVING THE PROCESS OF PRODUCING FORGED PIECES FOR POWER PARTS USED IN THE AVIATION INDUSTRY

DOI: 10.17804/2410-9908.2023.6.065-077

Forged pieces made of the as-delivered 1933 alloy for aircraft power units are important semi-finished products manufactured by the Kamensk-Uralsky Metallurgical Works JSC. The production of these parts is challenging due to the variation of their mechanical properties over the volume. Our goal is to find ways of stabilizing and improving the mechanical properties of forged pieces of this type. The simulation of the die-forging of a typical part reveals a 21 % difference in the accumulated amount of strain over the volume of the finished forged parts. Despite the uneven distribution, the minimum strain is sufficient to obtain the required mechanical properties. Estimating the mean normal stress over the volume of a forged piece, we have concluded that it is below the threshold level that ensures that this part is produced without cracking or failure. Experiments have shown that an increase in the holding time in aging stage I and a decrease in stage II result in an increase in the mechanical properties of the product and their uniform distribution depending on the direction.

Acknowledgments: The research was carried out as part of the state assignment (theme Pressure, No. 122021000032-5).

Keywords: the 1933 aluminum alloy, die-forging, finite element method, heat treatment, aging

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Article reference

Improving the Process of Producing Forged Pieces for Power Parts Used in the Aviation Industry / Yu. V. Zamaraeva, А. V. Razinkin, E. I. Buribaev, А. V. Ponomarev, Е. G. Dymshakova // Diagnostics, Resource and Mechanics of materials and structures. - 2023. - Iss. 6. - P. 65-77. -
DOI: 10.17804/2410-9908.2023.6.065-077. -
URL: http://eng.dream-journal.org/issues/content/article_417.html
(accessed: 05/22/2024).

 

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