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The Effect of Current Strength and Tungsten Inert Gas (TIG) Welding Cooling Media on Aluminum 6063 on Hardness and Macro Structure


Pengaruh Kuat Arus dan Media Pendingin Pengelasan Tungsten Inert Gas (TIG) pada Aluminium 6063 Terhadap Kekerasan dan Struktur Makro

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DOI:

https://doi.org/10.21070/ups.7602

Keywords:

Welding, Tungsten Inert Gas (TIG), Aluminum 6063, Hardness, Macrostructure

Abstract

Aluminum welding important process modern manufacturing industry due widespread use in light construction and transportation. However, welding aluminum faces challenges due reactivity to oxygen, which can produce oxides that compromise quality joint. This research focuses on Tungsten Inert Gas (TIG) welding technique for Aluminum 6063, with aim of finding the relationship between process parameters and material characteristics, especially hardness and macro structure weld zone. The research method involves welding with varying current strength and coolant, followed Brinell hardness (HB) testing and macrostructural analysis. The results show that specimen with current strength parameter 120A and oil cooling produces average hardness 228 HB, while specimen with 130A and water cooling shows lowest value 151.3 HB. Macrostructural analysis revealed changes Weld Metal and Heat Affected Zone (HAZ), well presence of weld defects in specimens with current strength of 130A. This research provides important insights for optimizing the aluminum welding process.

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Posted

2025-03-17