Study of Mechanical and Metallurgical Properties of Cold and Hot Reciprocating Wire TIG Welding on AISI 1035 Carbon Steel

Abstract

A novel Tungsten inert gas (TIG) welding variant is introduced in this research. The authors studied the tungsten inert gas welding with different wire feeding system such as cold wire, hot wire, cold wire reciprocating, and hot wire reciprocating. Microstructural and mechanical properties of AISI 1035 carbon steel joints using different feeding system have been studied. The reciprocating filler wire system stirs the molten metal of the weld pool before it solidifies during the welding operation. The hot wire reciprocating tungsten inert gas welding has given the best results in terms of tensile properties and hardness of the joint. It also instigated the grain refinement in the weld zone which is attributed not mainly to dendrite fragmentation but impeding of the dendritic growth . The microstructure study of reciprocating wire feeding tungsten inert gas welded joints has shown the small size as well as uniform grains as compared to the conventional TIG welded joints. The reciprocating hot wire feeding tungsten inert gas welding gives a phenomenal improvement in the mechanical properties when compared with conventional TIG welding.

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Abbreviations

TIG:

Tungsten inert gas welding

CW:

Continuous cold wire feeding

RCW:

Reciprocating cold wire feeding

HW:

Continuous hot wire feeding

RHW:

Reciprocating hot wire feeding

VHN:

Vickers hardness number

UTS:

Ultimate tensile strength

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Correspondence to Mukesh Chandra.

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Tanmay, Chandra, M., Sharma, S. et al. Study of Mechanical and Metallurgical Properties of Cold and Hot Reciprocating Wire TIG Welding on AISI 1035 Carbon Steel. J. Inst. Eng. India Ser. D (2021). https://doi.org/10.1007/s40033-021-00249-2

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Keywords

  • Cold wire reciprocating
  • Hot wire reciprocating
  • TIG welding
  • Grain refinement
  • Tensile test