An Experimental Study on the Effect of Heat Input on the Weld Efficiency of TIG-MIG Hybrid welding of Type 304 Austenitic Stainless Steel

E. O. Ogundimu, E. T. Akinlabi, M. F. Erinosho

Research output: Contribution to journalConference articlepeer-review

9 Citations (Scopus)

Abstract

Welding is described as the process of joining metals so that bonding can be created as a result of inter-atomic penetration. This study investigated the impact of heat input on the efficiency of the welding joints of 304 stainless steel. Three welds joint were made from two similar 304 stainless steel plates of thickness 6 mm. The tensile strength outcomes acquired showed that apex average magnitude of 672 MPa is obsessed by the sample A1 with lower thermal input. It was discovered that the percentage elongation, tensile strength and weld joint efficiency decreased with the intensification in thermal input into the weld. The average % elongation for the entire samples ranged from 28.4 % to 36.5 %. Sample A1 had the highest joint efficiency of 94.5 %. However, the optimum welding current of 190 for TIG and MIG hybrid welding of type-304 austenite stainless steel can be recommended for advanced technological applications such as aircraft manufacturing, nuclear industry, automobile industry and processing industry.

Original languageEnglish
Article number022075
JournalJournal of Physics: Conference Series
Volume1378
Issue number2
DOIs
Publication statusPublished - 18 Dec 2019
Event3rd International Conference on Engineering for Sustainable World, ICESW 2019 - Ota, Nigeria
Duration: 3 Jul 20198 Jul 2019

Keywords

  • Heat input
  • MIG-TIG hybrid welding
  • UTS
  • joint weld efficiency
  • microstructure

ASJC Scopus subject areas

  • General Physics and Astronomy

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