Original scientific paper

https://doi.org/10.17559/TV-20170425022545

Microstructural Characterization and Deformation of X10CrAlSi24 Sheet Material Applied V-Bending Process

Mustafa Özdemir orcid.org/0000-0002-7340-0940 ; Bozok University, Vocational School of Technical Sciences, Department of Machine and Metal Technology, Yozgat, Turkey
Hakan Gökmeşe ; Konya Necmettin Erbakan University, Seydişehir Ahmet Cengiz Engineering Faculty, Dept. of Metal. and Material Eng., 42370, Seydişehir/Konya, Turkey

Abstract

This study used X10CrAlSi24 (1.4762) sheet material, which is widespread in bending processes of the energy sector. During bending of X10CrAlSi24 (1.4762) sheet materials, cracking and tearing occur due to these materials’ brittleness at room temperatures. To avoid this phenomenon, bending was carried out by applying normalization treatments at 800 ºC, 850 ºC, 900 ºC and 950 ºC. V-bending processes were performed at three different bending angles (30º, 60º, 90º) and by a 4.5 mm punch tip radius. V-bending processes were carried out without leaving the punch on the material, and crushing of the punch on the sheet material sectional area was allowed. As a result of the bending processes, spring-go occurred in the 30º and 60º bending applications, whereas spring-back occurred in the 90º bending applications. The formation mechanism of capillary cracks (depending on deformation) due to internal stress especially at low temperatures was introduced by the microstructural characterization of the specimens.

Keywords

bending; heat treatment; spring-back; spring-go; sheet metal forming

Hrčak ID:

202630

URI

https://hrcak.srce.hr/202630

Publication date:

28.6.2018.

Visits: 2.089 *