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Custom Welding & Weldment Assembly from Vietnam

TIG, MIG, robotic, spot, and laser welding from AWS-certified factories. From precision brackets to 10-ton structural weldments — with full NDE inspection.

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6
Welding Processes
25+
Certified Welding Shops
50mm+
Max Plate Thickness
10T
Max Weldment Weight

Welding Processes

Six welding technologies to match every material, joint type, and production volume.

TIG Welding (GTAW)

Precision welds on thin materials and critical joints. Ideal for stainless steel, aluminum, and titanium. Clean, high-quality beads with minimal spatter.

Best for: Aerospace brackets, food equipment, medical devices, thin-wall enclosures

MIG Welding (GMAW)

High-deposition-rate process for production welding. Faster than TIG with good penetration. Pulse MIG for aluminum and spray transfer for steel.

Best for: Structural frames, machine bases, automotive brackets, general fabrication

Robotic Welding

Automated cells for consistent, repeatable welds at high volume. Fanuc, Yaskawa, and OTC Daihen robots with seam tracking and torch cleaning.

Best for: Production runs 200+ units, automotive parts, repetitive assemblies

Spot & Projection Welding

Resistance welding for sheet metal assemblies. Fast cycle times, no filler material, minimal distortion. Up to 200kVA capacity.

Best for: Sheet metal enclosures, brackets, automotive panels, wire forms

Laser Welding

High-precision, low-distortion joining with minimal heat-affected zone. Fiber and Nd:YAG laser systems for thin materials and hermetic sealing.

Best for: Medical instruments, sensors, battery housings, precision enclosures

Flux-Cored Arc Welding

High-deposition welding for heavy structural work. Self-shielded or gas-shielded options. Excellent for thick plate and positional welding.

Best for: Heavy equipment, structural steel, pressure vessels, pipe welding

What We Fabricate

From simple brackets to turnkey multi-component assemblies — our factories handle the full fabrication workflow.

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Structural Frames & Bases

Machine bases, equipment frames, chassis, and structural supports. Up to 6m long, 10 tons. Stress-relieved and precision-machined after welding.

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Sheet Metal Weldments

Enclosures, cabinets, housings, guards, and covers. Laser-cut, bent, and welded with blended joints for cosmetic finish.

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Pipe & Tube Assemblies

Manifolds, headers, exhaust systems, and pipe spools. CNC tube bending, orbital welding, and pressure testing available.

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Precision Weldments

Fixtures, jigs, tooling, and aerospace brackets. Tight-tolerance welding with post-weld CNC machining to hold critical dimensions.

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Heavy Plate Fabrication

Tanks, hoppers, chutes, and pressure vessels. Plate rolling, multi-pass welding, NDE inspection, and ASME code compliance.

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Multi-Component Assemblies

Complete assemblies combining castings, machined parts, sheet metal, and hardware. Full BOM procurement through final assembly.

Weld Quality & Inspection

Certifications & Standards

  • ✓
    AWS D1.1 / D1.2 — Structural steel and aluminum welding
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    ISO 3834 — Fusion welding quality requirements
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    EN 1090 — Steel and aluminum structures
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    ASME Section IX — Pressure vessel welding
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    ISO 9001:2015 — All network factories

Non-Destructive Examination

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    Visual Testing (VT) — 100% inspection per AWS D1.1
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    Dye Penetrant (PT) — Surface crack detection
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    Magnetic Particle (MT) — Ferrous flaw detection
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    Ultrasonic Testing (UT) — Internal defect detection
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    Radiographic Testing (RT) — X-ray for critical joints

Weldable Materials

Carbon & Alloy Steel

A36 · 1018 · 1045 · 4130 · 4140 · 4340 · A514

MIG, FCAW, SAW · 1–50mm+

Stainless Steel

304/304L · 316/316L · 2205 Duplex · 17-4 PH

TIG, MIG, Laser · Purge welding

Aluminum

5052 · 5083 · 6061 · 6063 · 7075

TIG, Pulse MIG · AC TIG

Copper & Brass

C110 · C360 · Beryllium copper C172

TIG, Laser · Preheat required

Titanium

Grade 2 · Grade 5 (Ti-6Al-4V) · Grade 23

TIG in argon chamber

Exotic Alloys

Inconel 625/718 · Hastelloy · Monel

TIG, Laser · Specialty fillers

How It Works

1

Send Drawings

3D models and 2D drawings with weld symbols, tolerances, and finish requirements.

2

DFM + Quote

Within 24 hours: pricing, lead time, WPS recommendations, and DFM feedback.

3

Fabrication + QC

Cutting, forming, welding, finishing, and NDE inspection with in-process documentation.

4

Delivery

Crated and shipped with full documentation: weld maps, NDE reports, material certs.

Why Vietnam for Welding Fabrication?

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Deep Welding Talent Pool

Vietnam's shipbuilding and oil & gas industries have trained thousands of certified welders. Many hold 6G pipe qualifications and AWS certifications.

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Competitive Pricing

Fabrication shop rates of $12–20/hr. Savings come from lower labor and overhead costs — not from cutting corners on quality.

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Zero US Tariffs

No Section 301 surcharges on Vietnamese fabrications. Steel weldments from China face 25%+ tariffs — from Vietnam, standard MFN rates only.

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Full-Service Shops

Cut, bend, weld, machine, finish, and assemble under one roof. Fewer handoffs means faster delivery and better quality.

Welding & Fabrication FAQ

What welding processes do your factories offer?
TIG (GTAW), MIG (GMAW), flux-cored arc welding (FCAW), spot welding, projection welding, stud welding, laser welding, and robotic welding. Our factories hold AWS D1.1/D1.2 structural welding certifications and employ CWI-supervised welders.
What materials can you weld?
Carbon steel (A36, 1018, 4130, 4140), stainless steel (304, 316L, 17-4 PH), aluminum (6061, 5052, 5083), copper and brass, Inconel and nickel alloys, and titanium. Thickness range from 0.5mm thin-gauge TIG to 50mm+ heavy plate multi-pass welds.
Can your factories handle large structural weldments?
Yes. Our factories handle structural weldments up to 6 meters long and 10 tons. Heavy fabrication capabilities include plate rolling, flame cutting, plasma cutting, and stress-relief heat treatment. Dedicated heavy weldment shops with overhead cranes up to 50 tons.
How do you ensure weld quality?
All welding follows qualified WPS/PQR procedures. NDE inspection includes visual (VT), dye penetrant (PT), magnetic particle (MT), ultrasonic (UT), and radiographic (RT) testing. Welders are qualified per AWS D1.1 or EN ISO 9606. CMM and fixture gauging verify dimensional accuracy.
Do your factories have robotic welding?
Yes. Several factories operate robotic welding cells from Fanuc, Yaskawa/Motoman, and OTC Daihen. Robotic welding is ideal for repeat production runs of 200+ units — delivering consistent bead quality, faster cycle times, and lower per-unit costs.
What surface finishes are available for weldments?
Grinding and blending, sandblasting, powder coating, wet paint, hot-dip galvanizing, zinc plating, e-coating, and passivation for stainless steel. We can finish weldments to cosmetic standards or functional-only.
What's the typical lead time?
Prototypes and first articles: 2–4 weeks. Production weldments: 3–6 weeks depending on complexity, volume, and finishing. Repeat orders with fixtures already set up: 2–3 weeks.
Why choose Vietnam for welding fabrication?
Vietnam has a deep talent pool of certified welders from its shipbuilding and oil & gas industries. Fabrication shop rates of $12–20/hr offer significant savings versus most markets. Zero Section 301 tariffs for US importers. Our on-the-ground team audits every factory and inspects every order.

Need Custom Weldments?

Send us your drawings and get a detailed quote with DFM feedback within 24 hours. Our team matches you with the best welding factory for your project.

Get a Free Quote →

Or email drawings to leeloo@dewintech.com