Comparative Study of Microstructure and Mechanical Properties of Hot Work Tool Steel SKD 6 with Different Manufacturing Process

Roni Kusnowo, Hanif Azis Budiarto, Cecep Ruskandi, Gita Hermana

2022

Abstract

SKD 6 tool steel is a medium carbon-alloy steel known as a creep-resisting alloy used as lightweight aluminium (Al) component die casting under high-temperature conditions. SKD 6 tool steel is an imported steel material manufactured by rolling and forging processes. Some studies also developed advance technology to fabricated SKD 6 by recrystallization and partial melting (RAP) process. However, due to the complex geometry and cost efficiency, sand casting method is the most effective method to produce Al dies. The SKD 6 cast alloy sample was heat treated at 850°C for 4 hours and cooled slowly inside the furnace by opening the oven door to 45 degrees. The observation showed that the microstructure of cast SKD 6 is identical to the as-cast product (imported) that has normalized. The microstructure showed that the normalized cast alloy has a ferrite matrix with spherical secondary carbide grain on the grain boundary. However, the hardness value of cast alloy Cr-M-V is slightly lower, 13.6 HRC, while the as-cast alloy is 18.1 HRC. The low hardness value may cause by the lower content of secondary carbides in casting sample, and segregation from secondary carbide. With these results, the imported substitute material is suitable for use.

Paper Citation

in Harvard Style

Kusnowo R., Azis Budiarto H., Ruskandi C. and Hermana G. (2022). Comparative Study of Microstructure and Mechanical Properties of Hot Work Tool Steel SKD 6 with Different Manufacturing Process. In Proceedings of the 5th International Conference on Applied Science and Technology on Engineering Science - Volume 1: iCAST-ES; ISBN 978-989-758-619-4, SciTePress, pages 746-750. DOI: 10.5220/0011876100003575

in Bibtex Style

@conference{icast-es22,
author={Roni Kusnowo and Hanif Azis Budiarto and Cecep Ruskandi and Gita Hermana},
title={Comparative Study of Microstructure and Mechanical Properties of Hot Work Tool Steel SKD 6 with Different Manufacturing Process},
booktitle={Proceedings of the 5th International Conference on Applied Science and Technology on Engineering Science - Volume 1: iCAST-ES},
year={2022},
pages={746-750},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0011876100003575},
isbn={978-989-758-619-4},
}

in EndNote Style

TY - CONF

JO - Proceedings of the 5th International Conference on Applied Science and Technology on Engineering Science - Volume 1: iCAST-ES
TI - Comparative Study of Microstructure and Mechanical Properties of Hot Work Tool Steel SKD 6 with Different Manufacturing Process
SN - 978-989-758-619-4
AU - Kusnowo R.
AU - Azis Budiarto H.
AU - Ruskandi C.
AU - Hermana G.
PY - 2022
SP - 746
EP - 750
DO - 10.5220/0011876100003575
PB - SciTePress