Analysis of Micro Structure and Hardness on SMAW Welding Of Low Carbon Steel with Variations of Welding Current and Cooling Media

Perwirahutama, Bima Aulia Esha (2022) Analysis of Micro Structure and Hardness on SMAW Welding Of Low Carbon Steel with Variations of Welding Current and Cooling Media. Undergraduate thesis, Universitas 17 Agustus 1945 Surabaya.

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Abstract

Welding is an integral part of the growing industry as it plays a major role in the engineering and repair of metal production. This study aims to determine the effect of cooling media on metals and microstructures tested for hardness using the Rockwell method. This research was conducted on ST 37 low carbon steel material using E6013 electrode with a diameter of 2.6 mm with a blunt connection, then cooling using 3 variations: Room temperature, Aquadest, SAE 5-40 oil. Metals that are often encountered with oil media have a harder hardness compared to room temperature media and aquadest. After testing at several points, the results in the form of the average value of the specimen raw material is 72 HRB, one of the results of welding variations with 100 amperes of oil cooling medium = 80.4 HRB. Specimens with room temperature medium = 75 HRB and aquadest = 77.5 HRB. Judging from this phenomenon, room temperature has a lower hardness value than aquadest, where room temperature has a value of 75 HRB while the value of aquadest is 77.5 HRB. Keywords : SMAW Welding: Ampere, Cooling Media; Rockwell Hardness Method Test; Microstructure Test

Item Type: Thesis (Undergraduate)
Uncontrolled Keywords: SMAW Welding: Ampere, Cooling Media; Rockwell Hardness Method Test; Microstructure Test
Subjects: T Technology > TJ Mechanical engineering and machinery
Divisions: Fakultas Teknik > Program Studi Teknik Mesin
Depositing User: 1421700165 Bima Aulia Esha Perwirahutama
Date Deposited: 27 Jul 2022 07:26
Last Modified: 27 Jul 2022 07:26
URI: http://repository.untag-sby.ac.id/id/eprint/16949

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