Rekayasa Mesin
Vol. 17 No. 2 (2026)

Analysis on the Improvement to the Mechanical Properties of ASTM A36 Using Spot Hardfacing Method

Awali, Jatmoko (Unknown)
Rohimsyah, Fikan Mubarok (Unknown)
Ismail , Andi Idhil (Unknown)
Dewanto , Hizkia Alpha (Unknown)
Al-Shehan, Khulafaur Nawaf (Unknown)
Akram, Muhammad (Unknown)
Yusuf, Chiara (Unknown)
Triana, Yunita (Unknown)
Zulfikar, Ainun (Unknown)



Article Info

Publish Date
15 Aug 2026

Abstract

Hardfacing is considered to be an optimum, lightweight method to improve the strength of electrical vehicle chassis to be used in many places with variable road conditions in Indonesia, especially around the New National Capital (IKN) area. In this study, carbon steel (ASTM A36) plates were strengthened by spot hardfacing using an ER70S-6 electrode. Variables used in this study are weld dwelling time (4, 7, and 10 seconds with a constant distance of 30 mm) and spot distance (20, 30, and 40 mm with a 7 second dwelling time). From this study, the increase of dwelling time and the decrease of the spot distance enhanced the toughness of the specimens. Further observations discovered that both dwelling time increase and spot distance decrease correlated to the increase of the average grain size of the phases present in the specimens. The optimum variations observed in this research are 10 seconds dwelling time of 1,321-1,508 J/mm2 and 20 mm of spot distance of 1,312-1,456 J/mm2.

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Journal Info

Abbrev

rm

Publisher

Subject

Mechanical Engineering

Description

Rekayasa Mesin is published by Mechanical Engineering Department, Faculty of Engineering, Brawijaya, Malang-East Java-Indonesia. Rekayasa Mesin is an open-access peer reviewed journal that mediates the dissemination of academicians, researchers, and practitioners in mechanical engineering. Rekayasa ...