Наукові конференції України, 2023-XXIII Прогресивна техніка, технологія та інженерна освіта

Розмір шрифту: 
Increasing the mechanical properties of cast aluminum alloy
Nataliya Zlochevska, Viacheslav Titov, V. Ivanytsia

Остання редакція: 2023-05-23

Тези доповіді

The paper considers the issues of increasing the mechanical properties of the secondary aluminum alloy AK7. To improve the properties used the scheme of screw expanding pressing (SUE). The results of experimental studies have shown that the strength characteristics increase, and their values increase in relation to the source metal by 15%, after the second treatment by 20%, after the third by 25%. The relative elongation of the samples in the experiments on uniaxial stretching, practically unchanged. The value of microhardness increases with increasing degree of accumulated deformation. It is shown that after the third transition in the central zone the value of the accumulated deformation is approximately equal to the amount of deformation after the first pass in the edge zone.

Ключові слова

screw widening pressing, shear deformations, plastic deformation, secondary aluminum alloy, mechanical properties.