Design optimization of Process Parameters for TIG Welding based on Taguchi Method

Choudhury, Nirmalendhu; Bandyopadhyay, Asish; Ramesh, R.

doi:10.14741/ijcet/spl.2.2014.03

Cited by 13 publications

(6 citation statements)

References 11 publications

(4 reference statements)

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“…The welding current with an F-value of 122 has the most significant effect on the tensile strength while the welding speed and GFR with F-values of 56 and 17 respectively have sub-significant effect. This result is in agreement with the work of Choudhury et al (2014) which revealed that current and GFR contributed significantly to the UTS of the TIG welded joints.…”

Section: Tensile Strengthsupporting

confidence: 93%

“…It was found that GFR plays a significant on the chemical composition and properties of the weld joints. Choudhury et al (2014) worked on the design optimization of process parameters for GTAW of dissimilar metals of SS and mild steel based on Taguchi and ANOVA method. The main effects plots revealed that current and GFR contributed significantly to the ultimate tensile strength.…”

Section: Introductionmentioning

confidence: 99%

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Investigation of mechanical properties and parametric optimization of the dissimilar GTAW of AISI 304 stainless steel and low carbon steel

Ogedengbe

Abioye

Ekpemogu

2018

WJE

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Purpose The purpose of this study is to conduct gas tungsten arc dissimilar welding of AISI 304 stainless steel and low carbon steel within a process window so as to investigate the effects of current, speed and gas flow rate (GFR) on the microstructure and mechanical properties of the weldments. Design/methodology/approach The welding experiment was carried out at different combinations of parameters using WN-250S Kaierda electric welding machine. A combination of scanning electron microscopy and energy dispersive X-ray spectroscopy was used to examine the microstructure of the weldments. Micro-hardness and tensile tests were performed using Vickers hardness tester and Instron universal testing machine, respectively. ANOVA was used to analyze the significance of the parameters on the mechanical properties. Findings The microstructure of the weld region is characterized with dendritic structure with the existence of ferrite and austenite phases. The utilized parameters show significant effects on the ultimate tensile strength (UTS) of the weldments. The current and GFR were found to be the most and least significant factors, respectively. Both the grain size and weld penetration contributed to the UTS of the weldments. The UTS (427-886 MPa) increased with decreasing current and welding speed. In all samples, the weld region exhibited higher hardness (297-396 HV) than the HAZ in the base metals (maximum of 223 Â ± 6 HV). All the three factors show significant effect with the welding speed contributing mostly to the hardness of the weld region. Originality/value The parametric combination that gives the optimum mechanical performance of the dissimilar gas tungsten arc weldments of AISI 304 stainless steel and low carbon steel was established.

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Section: Tensile Strengthsupporting

confidence: 93%

Section: Introductionmentioning

confidence: 99%

Investigation of mechanical properties and parametric optimization of the dissimilar GTAW of AISI 304 stainless steel and low carbon steel

Ogedengbe

Abioye

Ekpemogu

2018

WJE

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“…The calculated values of Analysis of Variance for Ultimate Tensile Strength of welding joint are listed in table 5. The calculated values of ANOVA present the percentage effect of each parameter on Ultimate Tensile Strength of the joint.…”

Section: ) Analysis Of Variance (Anova) Results For Utsmentioning

confidence: 99%

“…From this study they concluded that the welding current and welding speed are the major factors affecting tensile strength of welded joints. [5] Ajit hooda, Ashwani dhingra & Satpal sharma has done their research on optimization of MIG welding parameters in order to improve yield strength of AISI 1040 mild steel. The process parameters welding current, voltage, gas flow rate and wire speed were studied.…”

Section: IImentioning

confidence: 99%

Optimization of Pulsed Current MIG Welding Parameters for Ultimate Tensile Strength and Hardness of ASTM A106 Pipes using Taguchi Technique

Darshan¹,

N²,

V³

et al. 2016

IJERT

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Parametric optimization of Pulsed Current Metal Inert Gas Welding(PCMIGW) for Ultimate Tensile Strength and Hardness has been performed by using Taguchi method. Welding Current, Gas Flow Rate and Wire Feed Rate were chosen as welding parameters. The material used for this purpose was ASTM A106 pipes having dimensions with outer diameter 25 mm length 300 mm having wall thickness of 3 mm. Argon (85%) and Co2 (15%) was used as a shielding gas. Mild steel filler wire with copper coated of diameter 1.2 mm was used. An orthogonal array, L27 was used to conduct the experiments. Signal to Noise (S/N) ratio and Analysis of Variance (ANOVA) were employed to study the welding characteristics of material. Optimization of parameters was done by Taguchi method using statistical software MINITAB-16. Confirmation tests were carried out with optimal levels of welding parameters to validate the Taguchi's optimization method.

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“…Some research has been done on the selection of the welding process, but none of them deal with choosing the welding process using hard-facing to repair the shredder hammer. Choudhury, Bandyopadhyay, and Rudrapati (2014) studied about welding process selection used confidence level for each qualifier. Ravisankar, Balasubramanian, and Muralidharan (2006) used analytic hierarchic process (AHP) as a method for welding process selection of high strength aluminum alloys to fabricate butt joint.…”

Section: Introductionmentioning

confidence: 99%

A novel group decision-making method by P-robust fuzzy DEA credibility constraint for welding process selection

2020

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Design optimization of Process Parameters for TIG Welding based on Taguchi Method

Abstract: The present study pertains to the improvement of ultimate load of stainless steel -mild steel weld specimen made of tungsten inert gas (TIG)

Cited by 13 publications

References 11 publications

Investigation of mechanical properties and parametric optimization of the dissimilar GTAW of AISI 304 stainless steel and low carbon steel

Investigation of mechanical properties and parametric optimization of the dissimilar GTAW of AISI 304 stainless steel and low carbon steel

Optimization of Pulsed Current MIG Welding Parameters for Ultimate Tensile Strength and Hardness of ASTM A106 Pipes using Taguchi Technique

A novel group decision-making method by P-robust fuzzy DEA credibility constraint for welding process selection

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