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Suraj Nishad,
Suraj Kumar,
Amit Tiwari,
- Student, Department of Mechanical Engineering Bansal Institute of Engineering and Technology, Lucknow, Uttar Pradesh, India
- Student, Department of Mechanical Engineering Bansal Institute of Engineering and Technology, Lucknow, Uttar Pradesh, India
- Assistant Professor, Department of Mechanical Engineering Bansal Institute of Engineering and Technology, Lucknow, Uttar Pradesh, India
Abstract
The purpose of this study is to examine
metal inert gas (MIG) and tungsten inert gas
(TIG) welding processes. This study focuses
on welding defects with various kinds of AISI-
1020 mild steel welding joints when using
metal inert gas (MIG) and tungsten inert gas
(TIG). The impact of different process
variables on mild steel welding was looked
into. In this study, the main process
parameters were changed, and destructive
tests (tensile test) were used to examine the
impact on hardness and impact strength.
Yield stress, elastic stress, breaking stress,
and breaking force were all measured during
a tensile test. Additionally, non-destructive
(NDT) testing was done.
Non-destructive testing was used for the
liquid penetration and ultrasonic tests. The
necessity of exceptional weld quality was
also highlighted by a comparison of the two
testing methods. The tensile test results for
MIG welding are displayed in Fig. 12 and are
204.793 N/mm2 for yield, 27688 N/mm2 for
elastic behavior, and 180 N/mm2 for breaking
behavior. For MIG welding, the welding link
was broken at 180 N/mm2. Figure 13 shows
the TIG welding stresses as 313.633 N/mm2
for yield, 16506.2 N/mm2 for elastic, and
257.890
N/mm2 for breaking. At 257.890 N/mm2, the
welding connection failed. AISI-1020 mild
steel had a breaking stress of 420 N/mm2
prior to welding. Following welding, the
breaking stress decreased to 257.890
N/mm2.
Shielded metal arc welding, gas metal arc
welding, flux cored arc welding, submerged
arc welding, electro slag welding, electron
beam welding, and gas tungsten arc welding
are just a few of the various welding
techniques available for joining materials.
The type of current, the thickness of the base
materials, and the compositional range of the
material to be welded are the main factors
that influence the choice of welding. The
most widely used gas shielding arc welding
technique in many industrial domains is TIG
welding.
The most crucial factors in determining arc
stability, arc penetration, and defect-free
welds are covered in this case study,
including the power source, type of current,
gas flow rate, electrodes, filer wire, TIG
machine settings, and shielding gases.
Keywords: Programmable TIG welding, TIG welding parameters, Welding automation, Weld quality, Process optimization
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| Volume | 04 | |
| 02 | ||
| Received | 17/07/2026 | |
| Accepted | 17/08/2026 | |
| Published | 20/08/2026 | |
| Publication Time | 34 Days |