Experimental Investigation for Welding Aspects of AISI 304 & 316 by Taguchi Technique for the Process of TIG & MIG Welding

  IJETT-book-cover  International Journal of Engineering Trends and Technology (IJETT)          
  
© 2011 by IJETT Journal
Volume-2 Issue-2                          
Year of Publication : 2011
Authors : Mr.L.Suresh Kumar, Dr.S.M.Verma, P.RadhakrishnaPrasad, P.Kiran kumar , Dr.T.Siva Shanker
 

Citation

Mr.L.Suresh Kumar, Dr.S.M.Verma, P.RadhakrishnaPrasad, P.Kiran kumar ,Dr.T.Siva Shanker. "Experimental Investigation for Welding Aspects of AISI 304 & 316 by Taguchi Technique for the Process of TIG & MIG Welding". International Journal of Engineering Trends and Technology (IJETT),V2(2):28-33 Sep to Oct 2011. ISSN:2231-5381. www.ijettjournal.org. Published by Seventh Sense Research Group.

Abstract

In this Paper we discuss about the mechanical properties of austenitic stainless steel for the process of TIG and MIG welding. As with other welding processes such as gas metal arc welding, shielding gases are necessary in GTAW or MIG welding is used to protect the welding area from atmospheric gases such as nitrogen and oxygen, which can cause fusion defects, porosity, and weld metal embitterment if they come in contact with the electrode, the arc, or the wel ding metal. The gas also transfers heat from the tungsten electrode to the metal, and it helps start and maintain a stable arc. We used the TIG and MIG process to find out the characteristics of the metal after it is welded .The voltage is taken cons tant and various characteristics such as strength, hardness, ductility, grain structure, modulus of elasticity, tensile strength breaking point, HAZ are observed in two processes and analyzed and finally concluded

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Keywords
austenitic stainless steel; hardness; tensile strength, HAZ