Surface Finishes MFG SOLUTION Offer
High-quality surface finishing services improve your part’s aesthetics and functions regardless of the manufacturing process used. Deliver quality metal, composites, and plastic finishing services so you can bring the prototype or part you dream of to life.
Surface Treatment & Finishing Services
Post-processing, also called surface treatment or finishing, is a key step in precision manufacturing. Even when parts are accurately machined or cold forged, the surface condition still plays a major role. Because of this, surface treatment directly affects corrosion resistance, wear life, assembly quality, and appearance.
At MFG SOLUTION CO., LIMITED, we provide a full range of post-processing and surface treatment services. Moreover, these services are fully integrated with our CNC machining, cold forging, Swiss lathe machining, and sheet metal fabrication processes. As a result, customers receive finished parts that are ready for real-world use.
Why Post-Processing Is Important
In practice, machining or forging alone is often not enough. Without surface treatment, metal parts may corrode faster or wear out earlier. For this reason, post-processing is not optional in many industries.
Post-processing helps to:
- Improve corrosion resistance
- Reduce wear and friction
- Improve surface consistency
- Support smooth assembly
- Enhance product appearance
Therefore, choosing the right surface treatment is just as important as choosing the right material.
Overview of Our Post-Processing Services
At MFG SOLUTION CO., LIMITED, we offer multiple types of post-processing. Each method serves a clear purpose. In addition, several processes can be combined if needed.
Post-Processing Categories
| Category | Process |
|---|---|
| Mechanical Finishing | Polishing, Brushing, Sandblasting |
| Coating & Plating | Nickel Plating, Powder Coating |
| Chemical Treatment | Passivation, Black Oxide |
| Functional Operations | Deburring, Heat Treatment |
Mechanical Surface Finishing
Polishing
Polishing improves surface smoothness by removing small surface marks. As a result, parts look cleaner and feel smoother.
We provide:
- Standard polishing
- Fine polishing
- Mirror polishing
Polishing is often used before plating or coating. For example, stainless steel parts usually require polishing before nickel plating.
Suitable materials: stainless steel, carbon steel, aluminum, brass
Brushing
Brushing creates a uniform surface texture in one direction. At the same time, it helps reduce visible fingerprints.
This finish is commonly used when appearance matters but mirror polish is not required.
Suitable materials: stainless steel, aluminum
Sandblasting
Sandblasting cleans and roughens the surface using abrasive media. Because of this, it is often used before coating or painting.
Typical uses include:
- Surface cleaning
- Matte texture creation
- Coating adhesion improvement
Suitable materials: steel, stainless steel, aluminum
Coating & Plating Processes
Nickel Plating
Nickel plating adds a thin metal layer to the surface. Therefore, it improves corrosion resistance and surface hardness.
Nickel plating is widely used for:
- Mechanical parts
- Wear-resistant components
- Precision assemblies
Suitable materials: carbon steel, alloy steel, stainless steel
Powder Coating
Powder coating creates a thick and durable surface layer. Compared to liquid paint, it offers better protection.
Key benefits include:
- Strong corrosion resistance
- Good impact resistance
- Stable color and texture
Suitable materials: steel, selected stainless steel parts
Chemical Surface Treatments
Passivation
Passivation is mainly used for stainless steel. It removes surface contamination and improves corrosion resistance. As a result, stainless steel parts last longer.
Suitable materials: SS 301, 303, 304, 316, 17-4PH
Black Oxide
Black oxide creates a uniform black surface. Although protection is limited, it improves appearance and reduces reflection.
Suitable materials: carbon steel, alloy steel
Functional Post-Processing
Deburring
Deburring removes sharp edges created during machining or forging. Therefore, it improves safety and assembly quality.
Suitable materials: all metals
Heat Treatment (After Machining or Forging)
Heat treatment changes mechanical properties after manufacturing. For this reason, it is often used for high-load parts.
Supported methods include:
- Quenching and tempering
- Annealing
- Normalizing
- Precipitation hardening (17-4PH)
Integration with Manufacturing Processes
Surface treatment works best when planned early. At MFG SOLUTION CO., LIMITED, we integrate finishing into the production flow.
Typical workflows include:
- Cold forging → CNC machining → surface treatment
- CNC machining → polishing → plating
- Sheet metal fabrication → powder coating
As a result, final parts meet both dimensional and surface requirements.
Surface Treatment Selection Guide
| Requirement | Recommended Process |
|---|---|
| Corrosion resistance | Nickel plating, powder coating |
| Wear resistance | Nickel plating, heat treatment |
| Decorative surface | Polishing, brushing |
| Coating preparation | Sandblasting |
| Stainless steel protection | Passivation |
Typical Applications
Our surface-treated parts are used in:
- Automotive and EV components
- Industrial machinery
- Automation systems
- Structural hardware
- Precision mechanical assemblies
Because requirements differ by application, we help customers select the right finishing process.
Frequently Asked Questions (FAQ)
Q1: Can surface treatment be combined with CNC machining?
Yes. All surface treatments are integrated with machining.
Q2: Does surface treatment change part size?
Some processes add thickness. Therefore, we plan this during machining.
Q3: Which process is best for corrosion resistance?
Nickel plating and powder coating are common choices.
Q4: Can you meet custom surface finish requirements?
Yes. Custom specifications are supported.
Q5: Do you support mass production?
Yes. We support both low- and high-volume production.