Abstract
In this study, related to getting better obtain to the mechanical properties of medium carbon steel joints joined by MIG welding method using the Taguchi method welding groove were optimized. Grove angle (60ᵒ, 75ᵒ and 90ᵒ), current (100 A, 110 A and 120 A) and voltage (25 V, 30 V and 35 V) were used as welding parameters. The results showed that the highest tensile strength as 597.963 MPa was obtained at groove angle 90ᵒ, current 120 A and voltage 30 V, the lowest tensile strength was obtained as 395.125 MPa. The highest elongation as 11.551% was obtained at groove angle 90ᵒ, current 120 A and voltage 30 V, the lowest elongation was obtained as 8.354%. In addition, it was observed that the changes in current and voltage values significantly affect the tensile strength and elongation values of the joints. According to ANOVA analyses, the most effective parameter on average tensile strength and elongation were determined to be groove angle (62.75% and 75.58%, respectively). Based on S/N ratios, the optimal parameters for average tensile strength and elongation were determined A3B3C2 factors.
Highlights
In today’s manufacturing industry, the need for highstrength and cost-effective metal joining is increasing day by day
The Metal Inert Gas (MIG) welding process is known as GMAW
The average tensile strength of joints welded by MIG welding was measured as 504.042 MPa
Summary
In today’s manufacturing industry, the need for highstrength and cost-effective metal joining is increasing day by day. In accordance with these growing needs and demands purposes, one of the leading methods is welding. Gas Metal Arc Welding (GMAW/MIG) is one of the most preferred methods of joining metals by welding. This welding method has many advantages such as optimum product cost, better surface quality, strength and reasonable production speed [4,5,6]. The Metal Inert Gas (MIG) welding process is known as GMAW In this process, the heat of the electric arc is used to melt metallic components and the consumable electrode wire. Gas shielding (argon, carbon dioxide or various other gas mixtures) atmosphere is created around the welding zone to protect the weld deposit from contaminants [5,6,7,8]
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