Reliable Sheet Metal Welding Services
Metal Welding is fundamental for energy, shipbuilding, and construction sectors. Common assemblies:
- Pressure containment vessels
- Pipeline systems
- Structural support beams
- Marine vessel hulls
- Industrial storage tanks
- Power plant components
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Service
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Gas Metal Arc WeldingGMAW (MIG) uses a continuous wire electrode and shielding gas (argon/CO₂) for versatile, user-friendly welding of steel, aluminum, and stainless steel. It’s ideal for high-speed applications with minimal cleanup. -
Gas Tungsten Arc WeldingTIG welding employs a non-consumable tungsten electrode and inert gas (e.g., argon) for precise, high-quality welds on metals like aluminum and titanium. Preferred for aesthetic finishes and critical applications. -
Shielded Metal Arc WeldingSMAW ("stick welding") uses flux-coated electrodes to create welds, eliminating the need for external gas shielding. It’s adaptable for steel, stainless steel, and cast iron, even in rough conditions. -
Flux-Cored Arc WeldingFCAW utilizes flux-filled wire for self-shielding, enabling deep penetration and high deposition rates. Commonly used in construction and shipbuilding for thick materials or outdoor work.
Our Advanced Metal Welding Parts
Certified to AWS D1.1/ASME IX standards, we provide TIG, MIG, spot, and laser welding for structural and hermetic assemblies. Our robotic welding cells achieve 0.2mm repeatability on stainless steel, aluminum, and exotic alloys, complemented by X-ray/UT testing for critical joints in pressure vessels and load-bearing frames.
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10+ Years of Metal Welding ServicesTolerances as tight as ±0.0012 in.（0.03mm）Part size: ≤3000MM*1500MMLead times as fast as 3 working days -
210+ Years of Metal Welding ServicesTolerances as tight as ±0.0012 in.（0.03mm）Part size: ≤3000MM*1500MMLead times as fast as 3 working days -
310+ Years of Metal Welding ServicesTolerances as tight as ±0.0012 in.（0.03mm）Part size: ≤3000MM*1500MMLead times as fast as 3 working days
Metal Welding Materials
Joining dissimilar metals (stainless to carbon steel) via TIG/MIG/spot welding with X-ray certified seams. Expert in aluminum 6063 welding (50-200A parameters) and brazing copper alloys for heat exchangers and pressure vessels.
Metals
Ultra-Lightweight, Highly corrosion-resistant, Good thermal conductivity, Highly formable, perfect for complex Sheet Bending and Shaping.
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Golden aesthetic, good machinability, moderate corrosion resistance, often used for decorative hardware.
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Superior wear resistance, seawater corrosion resistance, classic metallic luster, commonly cast.
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Extremely lightweight (67% aluminum density), good vibration damping, requires surface treatment.
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Excellent malleability, corrosion-resistant, decorative finishes, suitable for intricate stamped panels.
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High electrical conductivity, soft yet work-hardening, requires annealing during multi-stage forming.
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Cost-effective formability, high strength-to-weight ratio, requires anti-rust coating for exposed edges.
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Corrosion-resistant, retains strength after welding, maintains integrity in harsh environments.
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Plastics
Fast-flowing melt, low shrinkage (0.4-0.7%), requires pre-drying (80°C/4h), ideal for automotive dashboards and consumer electronics housings.
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High melt viscosity (300-350°C processing), moisture-sensitive (0.02% max), optical-grade clarity for LED lenses and medical device components.
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High mold temperature (60-80°C) reduces internal stress, low warpage, replaces glass in automotive taillights and cosmetic packaging.
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Crystallization-sensitive cooling (80-120°C mold), high dimensional stability, precision gears and fuel system valves.
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Moisture absorption (2.5-3.5%) requires post-molding annealing, self-lubricating bushings and automotive cable ties.
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Low melt strength (LDPE: 160-240°C), high flow rate for thin-wall containers and chemical-resistant pipeline fittings.
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Extreme processing temps (380-400°C), low shrinkage (0.1-0.3%), aerospace bushings and surgical sterilization trays.
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Low density (0.9g/cm³), living hinge capability, disposable syringes and automotive HVAC ducts.
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Non-melt flow (sintering required), ultra-low friction coatings for semiconductor seals and non-stick cookware linings.
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Metal Welding Surface Finishes
Looking for the right finish? Choose from 20+ options to meet both your functional and aesthetic needs.
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As MachinedDescription: Standard finish with surface roughness of 3.2 μm (126 μin), removes sharp edges and deburrs parts cleanly. Key Use: Functional parts requiring no post-processing (e.g., brackets, gears). Process Tolerance: Dimensional ±0.1 mm, Ra 3.2±0.5 μm Process Specifications: ISO 2768-m standard, burr height ≤0.05 mm
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AnodizingDescription: Electrochemical oxide layer for corrosion resistance and aesthetics. Process Compatibility: Post-machining surface treatment Key Use: Aerospace components, consumer electronics (e.g., phone frames). Process Tolerance: Coating thickness 10-25 μm±2 μm, color consistency ΔE≤1.5 Process Specifications: MIL-A-8625 or ISO 7599, sealing pH 5.5-6.5
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AlodineDescription: Chemical film for corrosion protection and paint adhesion. Process Compatibility: Post-cleaning chemical immersion Key Use: Aviation and automotive electrical housings. Process Tolerance: Film thickness 0.5-3 μm, visual uniformity Process Specifications: Immersion time 3-10 min, bath temp. 20-30℃
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Black OxideDescription: Thin magnetite layer for corrosion resistance and reduced glare. Process Compatibility: Post-machining chemical treatment Key Use: Tools, firearms, automotive fasteners. Process Tolerance: Coating thickness 0.5-1.5 μm, salt spray ≥24 hrs Process Specifications: Alkaline bath pH 13-14, process time 5-30 min
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BrushingDescription: Linear abrasive finish for decorative texture. Process Compatibility: Manual/CNC abrasive belts Key Use: Appliance panels, architectural trims. Process Tolerance: Texture depth 0.05-0.2 mm, angle deviation ≤5° Process Specifications: Abrasive belt grit 80-240, feed speed 10-30 m/min
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EtchingDescription: Chemical/mechanical removal for micro-texturing or marking. Process Compatibility: Laser/chemical masking Key Use: Circuit boards, decorative logos. Process Tolerance: Etch depth 0.01-0.5 mm±5%, alignment ±0.1 mm Process Specifications: Etchant concentration 10-30%, laser power 20-100 W
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Electroless PlatingDescription: Uniform metal coating (e.g., nickel) without electricity. Process Compatibility: Chemical bath deposition Key Use: Wear-resistant industrial valves, connectors. Process Tolerance: Coating thickness 5-50 μm±5%, porosity ≤5/cm² Process Specifications: Bath temp. 85-95℃, pH 4.5-5.5
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ElectroplatingDescription: Electrochemical metal coating (e.g., chrome, zinc) for durability. Process Compatibility: Post-machining electrodeposition Key Use: Automotive trim, jewelry. Process Tolerance: Coating thickness 5-25 μm±2 μm, adhesion ≥4B (ASTM B571) Process Specifications: Current density 1-10 A/dm², bath temp. 40-60℃
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ElectrophoreticDescription: Polymer coating via electric field for corrosion resistance. Process Compatibility: Post-cleaning immersion Key Use: Automotive frames, HVAC components. Process Tolerance: Coating thickness 15-30 μm±3 μm, edge coverage ≥80% Process Specifications: Voltage 50-300 V, cure 160-200℃×20 min
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GrindingDescription: Precision abrasive finish for tight tolerances. Process Compatibility: Surface/cylindrical grinding Key Use: Bearing races, hydraulic shafts. Process Tolerance: Dimensional ±0.005 mm, Ra 0.4-0.8 μm Process Specifications: Wheel grit 60-120, coolant flow 5-20 L/min
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Heat TreatmentDescription: Thermal process to alter material hardness/toughness. Process Compatibility: Post-machining quenching/tempering Key Use: Gears, cutting tools. Process Tolerance: Hardness HRC 45-60±2, distortion ≤0.1% Process Specifications: Quench temp. 800-1000℃, temper time 1-4 hrs
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KnurlingDescription: Diamond or linear pattern for improved grip. Process Compatibility: CNC lathe rolling Key Use: Handles, adjustment knobs. Process Tolerance: Pattern depth 0.2-0.5 mm, pitch ±0.05 mm Process Specifications: Roller pressure 200-500 N, feed 10-50 mm/min
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Laser EngravingDescription: Permanent marking via laser ablation. Process Compatibility: Post-processing laser systems Materials: Metals, plastics, wood Key Use: Serial numbers, branding on industrial parts.
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OvermoldingDescription: Molding soft material (TPU/silicone) over rigid inserts. Process Compatibility: Injection molding Materials: Plastics, metals (as inserts) Key Use: Ergonomic handles, waterproof seals. Process Tolerance: Overmold thickness 1-5 mm±0.2 mm, bond strength ≥5 MPa Process Specifications: Injection pressure >5 MPa, mold temp. 40-80℃
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PolishingDescription: Mirror-like finish via abrasive compounds. Process Compatibility: Manual/robotic buffing Key Use: Medical instruments, luxury fixtures. Process Tolerance: Ra 0.025-0.1 μm, gloss ≥90 GU Process Specifications: Wheel speed 1000-3000 rpm, compound grit 2000-5000
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PassivationDescription: Acid treatment to remove free iron and enhance corrosion resistance. Process Compatibility: Post-cleaning chemical immersion Key Use: Surgical tools, food processing equipment. Process Tolerance: Film thickness 0.001-0.01 μm, salt spray ≥96 hrs Process Specifications: Nitric acid 20-50%, process time 20-60 min
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Powder CoatingDescription: Electrostatic polymer powder cured into durable film. Process Compatibility: Post-cleaning spray and bake Key Use: Outdoor furniture, automotive wheels. Process Tolerance: Coating thickness 60-120 μm±10 μm, ΔE≤1.0 Process Specifications: Voltage 30-90 kV, cure 180-200℃×15 min
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PhosphatingDescription: Phosphate layer for lubrication and paint adhesion. Process Compatibility: Chemical immersion Key Use: Engine components, firearm parts. Process Tolerance: Coating weight 2-5 g/m², crystal size ≤5 μm Process Specifications: Bath pH 2-4, process temp. 40-70℃
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PaintingDescription: Liquid coating for color and protection. Process Compatibility: Spraying/dipping Materials: Metals, plastics Key Use: Consumer electronics, automotive body panels. Process Tolerance: Coating thickness 20-50 μm±5 μm, adhesion ≥3B (ASTM D3359) Process Specifications: Spray pressure 0.3-0.6 MPa, cure 80-120℃×30 min
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Sand blastingDescription: Abrasive jet finish for uniform matte texture. Process Compatibility: Post-machining blasting Materials: Metals, glass, stone Key Use: Architectural facades, engine blocks. Process Tolerance: Ra 1.6-6.3 μm, coverage ≥95% Process Specifications: Grit size 80-120, air pressure 0.4-0.7 MPa
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CNC Machining Project
CNC Machining Project
Upload a CAD file to receive instantly quotes, lead time, and DFM details for your CNC components. Specializing in CNC machining for metals and plastics, we provide adaptive production and shipping solutions to align with your product development needs.
What is Sheet Metal Welding?How Does Sheet Metal Welding Work?
Sheet metal welding is a fabrication process that joins two or more metal sheets by melting their edges and fusing them, often with a filler material. It creates strong, permanent bonds critical for structural integrity in metal assemblies.
Common welding methods for sheet metal include:
TIG Welding (GTAW)：Uses a non-consumable tungsten electrode and inert gas (argon/helium) to produce precise, clean welds. Ideal for thin sheets (0.5–3 mm).
MIG Welding (GMAW)：Employs a continuous wire electrode and shielding gas for faster, high-deposition welding. Suitable for medium-thickness sheets (1–6 mm).
Resistance Spot Welding：Applies pressure and electric current to localized points, melting metal to form nugget joints. Widely used in automotive panels.
Laser Welding：Focuses a high-power laser beam for ultra-precise, low-distortion seams (common in electronics and medical devices).
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CNC MachiningWe specialize in manufacturing custom prototypes and end-use parts with precise and complex designs through CNC milling,CNC turning, and CNC precision machining. -
Sheet Metal FabricationWe expert in the flexible manufacture of sheet metal prototypes and precision parts through laser cutting, stamping, metal bending, metal welding, riveting, embossing, flanging and tapping, chamfering and other processes. -
Injection Molding ServicesWorldsoaring provides plastic injection molding, rapid and production tooling, overmolding, and insert molding service. No MOQ required, all while maintaining high-quality and precision molding products. -
More ServicesSLA, HP MJF, SLS, SLM technologies for functional prototyping and low-volume production. We manufacture 3d printed parts at competitive price. -
SolutionsSLA, HP MJF, SLS, SLM technologies for functional prototyping and low-volume production. We manufacture 3d printed parts at competitive price.
Success Stories of Metal Welding Projects
FAQs
Which sheet metal welding is most difficult?
TIG welding represents the most technically demanding sheet metal joining method, requiring advanced operator skills and extensive training due
to its precise parameter control needs. This complexity yields industry-leading weld integrity and longevity, justifying its adoption for critical applications.
What type of sheet metal welding is strongest?
Tungsten Inert Gas (TIG) welding delivers superior mechanical properties for sheet metal applications, with its high-temperature arc and controlled
cooling cycle producing exceptional tensile strength and material ductility. Metal Inert Gas (MIG) welding also provides robust joints, making both
processes ideal for structural applications.
What are the 3 main types of sheet metal welding?
The three fundamental sheet metal welding techniques are arc welding, gas welding, and resistance welding - each offering distinct technological
advantages for specific applications. Selection criteria include base material compatibility, required joint strength, production specifications, and
operator expertise.
