Sheet Metal Fabrication Service

Highly Personalized Customized Service
High-precision Processing: Advanced Equipment Technology
Fast Delivery: Efficient Production Process
Cost advantage: Optimize Material Utilization
Professional Technical Team & Perfect After-sales Service System
Green Production & Sustainable Development Concept

Fulei Metal Surface Treatment Processes for Industrial Use

Surface Treatment for Industrial Use Metal components depend on surface treatment for durability, aesthetics, and performance. Below are 4 core processes, simplified for industrial buyers—focused on key benefits, ideal uses, and must-know considerations.

1. Hot-Dip Galvanization (Steel/Iron)

How it works: Submerge in molten zinc (≈440°C) for an 85–120micron protective layer.

Key benefits: 30+ years outdoor corrosion resistance; covers hard-to-reach areas (bolt holes); meets BS EN ISO 1461.

Best for: Rail (trackside brackets, signal housings), construction (steel beams), marine (dock hardware).

Note: Matte silver patinas over time—function over aesthetics.

2. Powder Coating (All Metals)

How it works: Electrostatic polymer powder cured to 60–150microns; 1,000+ RAL colors/textures.

Key benefits: Customizable (matches brand specs like RAL 7035 for rail); chip-resistant; VOC-free.

Best for: Rail (passenger parts: seats, signage), consumer goods (outdoor furniture), automotive (aftermarket wheels).

Note: Poor for heavy outdoor wear—pair with galvanization for durability.

3. Anodizing (Aluminum Only)

How it works: Electrolytic oxide layer (5–250microns); dyed/sealed for color.

Key benefits: Strengthens aluminum; UV-resistant; lightweight.

Best for: Aerospace (components), architecture (window frames), electronics (laptop casings).

Note: Costly vs. powder coating—for high-performance/premium products.

4. Electroplating (Small Components)

How it works: Electric current deposits thin metal layers (1–50microns: chrome, nickel, copper).

Key benefits: Precise coverage for small parts; adds conductivity/reflectivity; cost-effective for high volume.

Best for: Electrical (connectors), hardware (screws), automotive (chrome trim).

Note: Limited outdoor protection—indoor/low-corrosion use only.

How to Choose

Base metal: Anodizing = aluminum; galvanization = steel/iron.

Needs: Outdoor durability → galvanization; aesthetics → powder coating; precision → electroplating.

Compliance: Rail/infrastructure = galvanization (meets Network Rail specs).

Conclusion

Pick the process to match your product’s metal, use case, and standards. For custom needs (e.g., dual-coat rail parts), partner with a specialized fabricator.

Read more about sheet metal optimization tips

more photos：https://fuleimetal.com/acf-product/industrial-grade-aluminum-library-book-cart/

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(Ideal for fabricators, engineers, and Industry 4.0 professionals.)

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More resources for sheet metal fabrication

Learn more about how sheet metal fabrication works and how to design the best parts for this technology.

FAQ's about sheet metal fabrication service

What types of sheet metal materials can be used in fabrication?

There are many types of materials available for sheet metal customization: cold rolled sheet (SPCC), hot rolled sheet (SPHC), electro-galvanized sheet (SECC), hot dip galvanized sheet (SGCC), stainless steel: such as SUS301 and SUS304, copper and copper alloys, aluminum and aluminum alloys: such as 6061, 6063 aluminum alloys, and other materials: including tinplate (SPTE).
We can also source many custom materials on request. Contact Violet@fuleimetal.com to discuss the options.

What sheet metal fabrication processes do you offer?

We provide the following processing services:
1. **Drawing design**.
2. **Laser cutting**, processing accuracy can reach ±0.1mm.
3. **Bending**.
4. **Forming**: Other forming processes besides bending, such as using molds on ordinary punching machines or other equipment to deform the workpiece, including stretching, rib pressing, convex bulge, etc.
5. **Welding forming: Commonly used welding methods include argon arc welding, butt welding, carbon dioxide welding, etc. The welding gap is generally 0.5-0.8mm, and the weld is uniform and smooth.
6. **Surface treatment**: electrostatic powder spraying, liquid paint, electroplating, surface oxidation, surface brushing
7. **Assembly**: Screws, rivets and other connection methods may be used.
8. **Packaging and shipment**.

How do you ensure the quality of fabricated sheet metal parts?

To ensure the quality of sheet metal parts, we strictly implement the process flow, establish a quality management system, and strengthen quality inspection: full inspection of the first piece, including inspection of the size, expansion, etc., sampling inspection of finished products, and comprehensive inspection of the appearance. If unqualified, timely adjustment and re-inspection.

What is the lead time for sheet metal fabrication projects?

The lead time for sheet metal fabrication projects varies based on multiple factors, such as project complexity, material availability, production capacity, and manufacturing processes.
In general, simple sheet metal fabrication projects may have a lead time of a few days to a week or so. Complex projects or those with special requirements can take two to four weeks or even longer. Prototype projects usually take 2-5 days if in-stock materials are used.