Industrial Welding Services Vasai - MIG, TIG, ARC & Spot Welding Job Work Vasai - Mumbai - Palghar

MIG welding — Metal Inert Gas welding — is a welding process where a continuous consumable wire electrode is fed through a welding gun and melted into the joint while an inert or semi-inert shielding gas (typically CO₂ or Argon/CO₂ mix) protects the weld pool from atmospheric contamination. MIG welding is the most widely used welding process in sheet metal and structural fabrication because of its high deposition rate, consistent weld quality, and suitability for automation. At Aero Enterprises Unit I, MIG welding is performed on all 4 multi-process inverter units for MS IS 2062 structural weldments, enclosure assemblies, and bracket fabrication.

MIG full form is Metal Inert Gas welding. It is also referred to as GMAW — Gas Metal Arc Welding — in the ISO and AWS welding standards. In practice, the term MIG covers both true inert gas shielding (argon for aluminium) and active gas shielding (CO₂ or Ar/CO₂ for steel), the latter being more precisely called MAG (Metal Active Gas) welding. In Indian industrial usage, MIG refers to both processes.

MIG and MAG welding are both gas metal arc welding (GMAW) processes. MIG uses an inert shielding gas — typically pure argon — and is used for aluminium, stainless steel, and non-ferrous metals. MAG uses an active shielding gas — typically CO₂ or Argon/CO₂ mix — and is used for mild steel and structural steel. In practice, both processes use the same welding machine and wire feed mechanism. The distinction is only the shielding gas selected for the material being welded. At Aero Enterprises Unit I, MAG (CO₂ or Ar/CO₂) is used for MS IS 2062 structural welding and MIG (argon) is used for aluminium and SS welding.

The gas used for MIG welding depends on the material: for mild steel, CO₂ or an Argon/CO₂ mix (typically 75–80% Argon / 20–25% CO₂) is used. Pure CO₂ gives deeper penetration and is lower cost. Ar/CO₂ mix gives a smoother arc, better bead appearance, and lower spatter. For aluminium, pure argon is used. For SS, an Argon/CO₂ or Argon/O₂ mix in very small active gas percentages (1–3%) is used to improve arc stability without over-oxidising the chromium in the stainless. At Aero Enterprises Unit I, the shielding gas is selected per material grade on every welding job.

TIG welding — Tungsten Inert Gas welding — is a welding process where a non-consumable tungsten electrode maintains the welding arc while the operator adds filler wire manually to the joint. Pure argon shielding gas protects the tungsten electrode, the weld pool, and the heat-affected zone from atmospheric contamination. TIG produces a precise, clean weld bead with minimal heat input and minimal distortion compared to MIG or ARC. It is the correct process for SS 304, SS 316, aluminium, thin-gauge material below 2mm, and cosmetic visible joints. At Aero Enterprises Unit I, TIG welding is performed on all 4 multi-process inverter units.

TIG full form is Tungsten Inert Gas welding. It is also referred to as GTAW — Gas Tungsten Arc Welding — in ISO and AWS welding standards. The tungsten electrode is non-consumable, meaning it does not melt into the weld pool. Filler metal is added separately as a hand-fed rod. The 'inert' in TIG refers to the argon or helium shielding gas which does not react chemically with the weld pool or the base metal.

MIG welding uses a continuously fed consumable wire electrode with CO₂ or Ar/CO₂ shielding — high deposition rate, faster production speed, suitable for structural MS and GI from 2mm upward. TIG welding uses a non-consumable tungsten electrode with manual filler addition and pure argon shielding — lower deposition rate, slower speed, but precise bead geometry, minimal heat input, and superior cosmetic quality. MIG is correct for production-speed structural fabrication on MS. TIG is correct for SS, aluminium, thin gauge below 2mm, and cosmetic joints where bead appearance matters. Both processes run on the same 4 multi-process inverter machines at Aero Enterprises Unit I.

Gas welding (oxy-acetylene welding) uses a combustible fuel gas — acetylene — mixed with oxygen to produce a flame hot enough to melt and fuse metal. It requires no electricity and no shielding gas cylinder beyond the oxy-acetylene supply. Gas welding is used for thin-gauge sheet metal, pipe brazing, and field repair work where electrical power is unavailable. MIG and TIG are electric arc processes that produce far more consistent, higher quality welds with better heat input control than gas welding. At Aero Enterprises Unit I, industrial production welding is performed on the 4 multi-process inverter (MIG/TIG/ARC) machines and 2 spot welders — gas welding is not a standard production process at Unit I.

Resistance spot welding joins two or more sheet metal layers by passing high electrical current through copper electrodes clamped on each side of the joint. Electrical resistance at the faying interface between the sheets generates localised heat that melts and fuses the metal into a weld nugget. No filler material, no shielding gas, and no visible external weld bead. The joint strength is determined by nugget diameter and penetration — both controlled by electrode force, current level, and weld time on the machine controller. At Aero Enterprises Unit I, 2 dedicated resistance spot welders are used for thin-gauge panel assembly, hardware joining, and high-volume sheet metal component production.

Aero Enterprises Unit I at Survey No. 109, Richard Compound, Manchipada Road, Vasai Phata, Vasai East, Palghar 401208, Maharashtra provides MIG, TIG, ARC, and resistance spot welding services in Vasai, Palghar, Virar, Nalasopara, Bhayandar, Mira Road, and the Mumbai metro region. The facility operates 4 multi-process inverter welding units and 2 spot welders. Welded assemblies proceed directly to 7-tank powder coat finishing on the same floor.