Parameters optimization of MAG welding for enhancing the mechanical properties and buckling behaviour of welded steel

• Autorzy: Alwan A. H. , Mahmood N. Y.

Identyfikatory

DOI

10.5604/01.3001.0014.1597

• Języki publikacji: EN

Abstrakty

EN

Purpose: The influence of metal active gas welding variables, including current, wire feeding speed and gas flow rate on the ultimate tensile strength and critical buckling load of steel (St.24) and the optimized welding conditions were discussed. Design/methodology/approach: The experimental steps are firstly designing the experiments, secondly conducting the mechanical tests, thirdly analysing the results through Minitab 16 and finally determining the optimum welding parameters. Confirmation tests of the optimized variables were validated. Findings: ANOVA approach manifested that the significant effect of welding variable on the tensile strength was the gas flow rate, while the current was on the critical buckling load. The results are confirmed and given the optimum values. Research limitations/implications: The influence of MAG welding variables (current, wire feeding speed and gas flow rate) on the tensile and buckling strengths of steel will be investigated in order to avoid the failure of many welded assemblies in the structures due to the buckling, in addition to reduce the requirement of long time and high cost to produce such assemblies. Therefore, it is necessary to find a solution to encounter the difficulties in their welding process. Practical implications: The major challenge was how to reduce the time and cost beside gaining the optimum properties through the designed experiments. Originality/value: The results may be helpful to design any welded joints in machine frames, structural steel connections and crane structures at the optimum condition.

Słowa kluczowe

EN

MAG welding parameters; critical buckling load; Taguchi method; ANOVA; optimization

PL

spawanie MAG; parametry spawania; metoda Taguchiego; ANOVA; optymalizacja

• Wydawca: International OCSCO World Press
• Czasopismo: Journal of Achievements in Materials and Manufacturing Engineering
• Rocznik: 2020
• Tom: Vol. 99, nr 1
• Strony: 5--13
• Opis fizyczny: Bibliogr. 21 poz., rys., tab.

Twórcy

autor

Alwan A. H.

• Mechanical Engineering Department, University of Technology-Iraq, Baghdad, Iraq

autor

Mahmood N. Y.

• Mechanical Engineering Department, University of Technology-Iraq, Baghdad, Iraq

Bibliografia

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Uwagi

PL

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2020).