The Effect of Current Strength and Tungsten Inert Gas (TIG) Welding Cooling Media on Aluminum 6063 on Impact Strength and Macrostructure
Pengaruh Kuat Arus dan Media Pendingin Pengelasan Tungsten Inert Gas (TIG) pada Aluminium 6063 Terhadap Kekuatan Impact dan Struktur Makro
DOI:
https://doi.org/10.21070/ups.8999Keywords:
Welding, Tungsten Inert Gas (TIG), Aluminum 6063, Impact, MacrostructureAbstract
Aluminum welding essential process modern manufacturing industry wide application light construction and transportation. However, aluminum welding challenging reactivity oxygen, produce oxides compromise quality joint. This study focuses Tungsten Inert Gas (TIG) welding technique Aluminum 6063, finding relationship between process parameters and material characteristics, especially hardness and macrostructure weld zone. Research method involves welding varying current strength and coolant, followed Charpy Impact testing and macrostructure analysis. Results show specimen 130A current strength and water coolant parameters showed highest value impact strength 0.615Joule/mm2, while specimen 140A and water coolant showed lowest value 0.014Joule/mm2. Macrostructural analysis revealed there 5 welding defects, namely porosity defect 1 small holes weld metal, 2 slag induction welding defects, defects termination welding and 2 overlap welding defects weld metal zone base metal zone specimen4 and specime7 there 2 welding defects, namely slag induction welding defects, defects termination welding and overlap welding defects weld metal zone base metal zone.
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