TIG (Tungsten Inert Gas) and MIG (Metal Inert Gas) welding are the two most widely used arc welding processes in custom metal fabrication. TIG welding uses a non-consumable tungsten electrode to produce precise, high-quality welds — ideal for thin materials, stainless steel, aluminum, and applications where appearance matters. MIG welding uses a consumable wire electrode for faster deposition rates — perfect for thicker materials, carbon steel, and high-volume production.

At Conwhole, we operate both TIG and MIG welding systems, allowing us to select the optimal process for each application. Our certified welders handle everything from delicate instrument enclosures to heavy-duty structural frames, with full weld inspection and testing capabilities.

Key Takeaways:

– TIG welding: precision, clean appearance, ideal for thin materials and exotic alloys

– MIG welding: high speed, deep penetration, cost-effective for thick materials and production runs

– Materials: stainless steel (304, 316), carbon steel, aluminum (5052, 6061), copper alloys, titanium

– Thickness range: 0.5 mm to 50 mm

– Certified welders following AWS D1.1 / ISO 3834 standards

– In-house weld inspection: visual, dye penetrant, X-ray testing available

– Post-weld services: grinding, polishing, heat treatment, surface finishing

Food & Beverage Equipment

– Stainless steel tanks and vessels

– Food processing machine frames

– Conveyor systems and sorting equipment

– Hygienic enclosures and covers

Architectural & Construction

– Galvanized steel scaffolding frames

– Fall protection system

– Balcony balustrades

– Structural pipe brackets

Automotive & Transportation

– Vehicle frames and chassis components

– Exhaust systems and mufflers

– Trailer frames and cargo bodies

– Custom brackets and mounting plates

Industrial Machinery

– Machine frames and structural supports

– Equipment enclosures and guards

– Material handling systems

– Process piping and manifolds

Power Generation

– Turbine housing and structural frames

– Generator enclosures and bases

– Heat exchanger and boiler components

– Power plant structural welding

All our welders hold AWS/ISO certifications. Every project follows qualified welding procedure specifications (WPS) with full traceability. We maintain procedure qualification records (PQR) and welder performance qualifications (WPQ) for audit-ready documentation.

We don’t default to one process. Our engineers select TIG or MIG — or a combination — based on your material, thickness, appearance requirements, and production volume. This ensures optimal quality and cost efficiency for every project.

Welding is rarely the only process your project needs. We handle cutting, bending, machining, and surface finishing in-house. Your parts move through our facility as a complete manufacturing flow — no coordination between multiple suppliers.

Beyond visual inspection, we offer dye penetrant testing, magnetic particle testing, ultrasonic testing, and radiographic testing. First-article inspection reports include weld dimensions, defect analysis, and code compliance verification.

Q1: What is the difference between TIG and MIG welding?
TIG welding uses a non-consumable tungsten electrode and produces precise, clean welds — ideal for thin materials, stainless steel, aluminum, and applications where appearance matters. MIG welding uses a consumable wire electrode for faster deposition rates — better for thicker materials, carbon steel, and high-volume production. We select the optimal process based on your project requirements.

Q2: What materials can you weld?
We weld stainless steel (304, 316, 430), carbon steel (Q235, SPCC, A36), aluminum (5052, 6061, 6063), copper alloys, and titanium. Material thickness range: 0.5 mm to 50 mm depending on the welding process.

Q3: What welding certifications do you hold?
Our welders hold AWS D1.1, ISO 3834, and EN 1090 certifications. We maintain qualified welding procedure specifications (WPS), procedure qualification records (PQR), and welder performance qualifications (WPQ) for all processes and materials.

Q4: What is the minimum order quantity (MOQ)?
We support orders from 1 piece for prototypes to 10,000+ pieces for mass production. There is no minimum order requirement — we work with your project needs.

Q5: What weld inspection methods do you offer?
Standard inspection includes visual examination (VT). Optional testing includes dye penetrant testing (PT), magnetic particle testing (MT), ultrasonic testing (UT), and radiographic testing (RT). Inspection reports are provided with each shipment.

Q6: Can you handle post-weld finishing?
Yes. We offer weld grinding, polishing, heat treatment (stress relief, annealing), and surface finishing (powder coating, anodizing, electroplating). All processes are managed in-house for consistent quality.

Q7: What file formats do you accept?
We accept DXF, DWG, STEP, IGES, PDF drawings, and even hand sketches. For welding assemblies, 3D models (STEP) are preferred as they allow us to verify fit and plan weld sequences before production.

Q8: Do you provide material certificates and weld documentation?
Yes. We provide material test certificates (MTC), welding procedure specifications (WPS), first-article inspection reports, and weld inspection reports. Third-party inspection (SGS, BV) is available upon request.

Send us your drawings for a free quotation within 24 hours.