MIG Welding

1、Process Introduction | What problems can gas shielded welding solve?

High speed deposition: solid wire with a diameter of 1.2 mm, with a deposition rate of 5 kg/h at a current of 300 A, which is three times faster than manual arc welding
Thin to thick plate: 0.8mm automotive plate -60mm thick plate with multiple layers, fully covered by one device
Low spatter: pulse/dual pulse mode, spatter amount ≤ 1 g/min, almost no cleaning after welding
All position: robot six axes+external axis, programming for flat, horizontal, vertical, vertical, and circumferential seams in one go
Wide range of materials: carbon steel, stainless steel, aluminum, copper silicon alloy, heterogeneous steel (Q355+304L) can be formed in one go

2、Capabilities

Item	Parameter
Maximum Workpiece Size	3500 × 1500 × 800 mm (Robot Arm Reach)
Plate Thickness Range	0.8 mm – 60 mm (Multi-pass)
Weld Type	Butt, Fillet, Lap, Circumferential, 3D Curved Seam
Welding Position	All-position (Flat, Horizontal, Vertical, Overhead, 360° Circumferential)
Surface Quality	Free of pores & undercuts, Ra ≤ 2.5 µm, Paint-ready
Batch Capacity	1 – 100,000 pieces/batch, 24-hour continuous operation

3、Our Equipment

Fronius TPS 500i Pulse + FANUC M-20iA

500 A pulse/double pulse, carbon steel/stainless steel 0.8-8 mm, splash ≤ 1 g/min

Lincoln Power Wave S500 + KUKA KR30 HA

High speed pulse, aluminum magnesium alloy 1-12mm, robot repeat ± 0.02 mm

MAG Robot Island 3 × 500 A Double Wire

60mm thick plate with multiple layers and passes, with a 40% increase in cycle time, suitable for construction machinery boom

CO ₂ Handheld car 350 A × 6 sets

Prototype welding repair, first piece verification for large orders, real-time current/voltage acquisition

4、Gas Shield Welding Case Studies | Typical Application Cases

Case 1 | Wangao WEG motor base MAG ring seam

Material: Q355B hot-rolled plate with a diameter of 4mm and a diameter of 400mm

Weld seam: outer circumferential seam docking, single-sided welding, double-sided forming

Process: MAG pulse 280 A, 80% Ar+20% CO ₂, robot speed 0.6 m/min

Result: Melting depth of 4.5 mm, no undercutting, X-ray grade I film rate of 99%, monthly production of 50000 pieces

Case 2 | MAG Continuous Welding of Aluminum Shell for New Energy Batteries

Material: 6061-T6 extruded profile 3 mm

Weld seam: continuous corner joints on all sides, with a total length of 1.8 meters

Process: Double pulse 220 A, Ar+He mixed gas, interlayer temperature ≤ 80 ℃

Result: Deformation ≤ 0.3 mm, helium leak detection ≤ 1 × 10 ⁻⁶ Pa · m ³/s, batch of 800000 pieces with no leakage

Case 3 | Construction Machinery 40mm Thick Plate Multi Layer

Material: Q690D high-strength steel 40mm, double-sided groove

Process: MAG dual wire 500 A+400 A, multi-layer and multi pass, robot swing 3 mm

Result: -40 ℃ impact ≥ 47 J, tensile strength ≥ 690 MPa, saving 25% of welding materials

5、 Gas and energy consumption

80% Ar+20% CO ₂: Carbon steel/stainless steel, with minimal spatter and bright welds
Ar+He 30%: Aluminum magnesium alloy, deep melting+no porosity
Pure CO ₂: Low cost thick plate, slightly higher splash, suitable for 60mm multi-layer base coating
Energy consumption: Robot+power supply of 8 kW, saving 30% compared to manual welding of the same specifications

6、 Quality and traceability

ISO 15614-1 MAG Welding Process Certification
Online laser weld seam tracking: real-time compensation for width and offset, automatic marking of defects
QR code engraving: furnace number+welder number+current/voltage/speed, scan the code for full traceability
Each batch: first piece profile+stretching+bending, mass production 10% appearance+ultrasonic sampling

HEHUA FAQ

Trust Reliability

Years of export experience to global markets, proving our reliability in quality, logistics, and compliance.

Certified quality management and standardized production ensure reliable and repeatable results for every order.

What tolerances can you achieve?

Our standard tolerance for CNC machining is DIN-2768-1-f (fine)or +/-0.01mm. For high-precision requirements, we can achieve tolerances as tight as +/-0.005mm depending on the geometry and material.

What surface finishes do you offer?

We provide one-stop surface treatment services, including: As-machined (De-burred) Sandblasting Anodizing (Type ll Type III)Polishing Mirror Polishing Powder Coating Painting Laser Engraving (Logo/Text)

How fast can I get a quote?

Send us your 3D files (STEP/IGES) and 2D drawings (PDF). Our engineering team will analyze them and provide a detailed quote within 6-12 hours.

What is your typical lead time?

Prototypes: 3-7 days Production 10-20 days We also offer an Expedited Service for urgent projects.

Do you provide samples before mass production?

Yes, we always recommend making a pre-production sample for approval. We will send you photos/videos or ship the physical sample to you for verification before running the full batch.

What if the parts do not meet the specifications?

We have a strict Quality Control policy. If the parts do not meet the drawing specifications, we will remake them for free or provide a full refund. We stand behind our quality 100%.

What materials can you machine?

We work with a wide range of materials including: Metals, Aluminum (6061, 7075), Stainless Steel (303, 304, 316), Brass, Copper, Titanium Plastics: ABS, POM(Delrin), PEEK, Nylon, Polycarbonate. If you need a special material, just let us know.

Customization Process

Label

Boring services Drilling & Tapping

Core competency

Solution

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