Comparative Analysis of Welding Processes in the Shipbuilding Industry: Experimental Case of Electric Arc Welding SMAW, GMAW, GTAW and FCAW
DOI:
https://doi.org/10.70929/caui3.v1i1.1zazzp73Keywords:
tensile, material thickness, destructive testing, non-destructive testing, factorial experimental designAbstract
This study evaluates how amperage and material thickness affect the strength and quality of welds in the shipbuilding industry. Destructive (tensile and impact) and non-destructive (ultrasonic and liquid penetrant) tests were performed with different combinations of parameters in SMAW, GMAW, GTAW and FCAW welding processes. The results indicate that the material thickness and welding type are the most influential factors on joint quality. The FCAW process demonstrated superior performance in tensile strength, reaching up to 450 MPa in 10 mm and 12 mm thick materials. Although the amperage varied between 185 A and 200 A, its impact was minor compared to material thickness and weld type. The study concludes that the selection of welding method and operating parameters should be tailored to the specific needs of the marine application, offering recommendations to optimize these processes and improve efficiency and quality in the naval industry.
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