Open AccessReducing the flaws of 08Yu steel sheet blanks, designed for cold stamping products
Author(s) -
Іrina Doschechkina
Publication year - 2021
Publication title -
vestnik harʹkovskogo nacionalʹnogo avtomobilʹno-dorožnogo universiteta
Language(s) - English
Resource type - Journals
eISSN - 2521-1773
pISSN - 2219-5548
DOI - 10.30977/bul.2219-5548.2021.94.0.47
Subject(s) - stamping , deep drawing , recrystallization (geology) , cold forming , annealing (glass) , sheet steel , materials science , hot stamping , metallurgy , cold formed steel , plasticity , composite material , paleontology , biology , buckling
The aim of the work is to develop a method of increasing the technological plasticity while maintaining the strength and preventing aging of blanks of cold-rolled sheet steel 08Yu. The task of this work is research and determination of optimal temperature-time parameters of high-speed contact recrystallization annealing and subsequent aging of 08Yu steel sheet blanks to obtain the required level of mechanical properties that would improve their deformability and ability of very deep drawing during cold stamping of products. The optimal parameters of the speed mode are set recrystallization annealing of cold-rolled 08Yu sheet steel, which provides the best structure and properties for further cold pressure treatment. The temperature-time modes of further aging and possibilities to prevent the processes of its natural aging during prolonged operation or transportation have been studied. The method and modes of heat treatment of blanks from finished 08Yu sheet steel to facilitate their deformability and improve stamping in order to reduce waste in the manufacture of products by cold deformatiion with deep and complex drawing were suggested.