In:
European Journal of Materials Science and Engineering, Universitatea Gheorghe Asachi din Iasi, Vol. 7, No. 1 ( 2022-03-20), p. 37-42
Abstract:
In the mass production of automotive parts, the tool life of the manufacturing tool is very important from an economic site. The tool life is determined by the material quality and the properties of the tool achieved by heat treatment. Böhler K340 Isodur grade tool steel is considered one of the best cold forming tool steels due to its chemical composition and its electro-slag remelting manufacturing. In our experiments, samples made from this steel were subjected to two different heat treatment technologies. The first one (CT-conventional treatment) was tempered three times at high temperature after high temperature hardening, and the second one (DCT-deep cryogenic treatment) was deep frozen – with nitrogen – after high temperature hardening and then tempered three times at high temperature. After the heat treatment, the pieces were subjected to microscopic, toughness, hardness and wear tests. The results of the measurements showed that the structure of the DCT steel is much finer and more homogeneous than the CT steel, the impact strength is higher, there is no difference in hardness, but the wear resistance of the CDP specimen is better than the CT specimen.
Type of Medium:
Online Resource
ISSN:
2537-4346
DOI:
10.36868/ejmse.2022.07.01
DOI:
10.36868/ejmse.2022.07.01.037
Language:
Unknown
Publisher:
Universitatea Gheorghe Asachi din Iasi
Publication Date:
2022
detail.hit.zdb_id:
3069839-X
Bookmarklink