Engineering-Grade Surface Treatment

Surface Finishing for Industrial Metal Parts

Professional surface finishing services to improve corrosion resistance, wear performance, and dimensional stability. Critical engineering processes for industrial applications.

±0.005mm
Dimensional Control
5-25μm
Anodizing Thickness
Surface finished aluminum and copper metal parts for industrial applications
RoHS Compliant
All Processes
Engineering Critical

Why Surface Finishing Matters

Surface finishing is not decorative only -- it is a critical engineering step that directly affects part performance, lifespan, and assembly compatibility.

Corrosion Resistance

Improves oxidation resistance and extends service life in industrial environments

Surface Hardness

Enhances wear resistance and reduces friction for moving parts

Dimensional Control

Controls surface roughness for precise assembly and fit tolerances

Batch Consistency

Improves appearance and consistency across production batches

Our finishing processes are designed to meet functional and industrial standards, not consumer aesthetics.

Industrial equipment with surface finished metal components
Available Processes

Surface Finishing Processes

Each finishing method is matched carefully to material properties to avoid distortion or performance degradation.

Anodizing (Aluminum)

Creates a controlled oxide layer on aluminum parts, improving corrosion resistance and surface hardness.

Clear anodizing (Type II, 5-15μm)
Color anodizing (black, blue, red)
Hard anodizing (Type III, 15-25μm)

Applications:

Structural parts, housings, brackets, precision components

Anodizing surface finishing for CNC machined metal parts

Polishing

Reduces surface roughness and improves surface smoothness for both functional and visual requirements.

Reduced friction coefficient
Improved cleanliness
Enhanced reflective appearance

Best for:

Copper and brass parts requiring smooth surface finish

Polishing surface finishing for CNC machined metal parts

Sandblasting

Creates a uniform matte surface by removing machining marks and providing consistent texture.

Improves coating adhesion
Reduces surface glare
Provides consistent texture

Ideal for:

Pre-treatment before painting or coating applications

Sandblasting surface finishing for CNC machined metal parts

Brushing

Produces directional surface textures while maintaining dimensional accuracy for controlled aesthetics.

Directional grain pattern
Maintains dimensional accuracy
Moderate surface refinement

Used for:

Parts requiring controlled aesthetics with functional performance

Brushing surface finishing for CNC machined metal parts

Plating (On Request)

Plating enhances surface conductivity, corrosion resistance, or solderability depending on application needs. Processes are selected based on material compatibility and end-use requirements.

Material Compatibility

Our surface finishing services are suitable for all materials we supply and machine.

Aluminum Alloys

• 6061, 6063, 7075
• 6082, 5052, 2024
• 3003, 1100

Best with anodizing, sandblasting, brushing

Copper Materials

• Red copper (C101, C110)
• Brass (C360, C260)
• Bronze alloys

Ideal for polishing, brushing, plating

Special Alloys

• Beryllium copper
• Chrome copper
• Tin bronze

Custom finishing based on application

Quality control inspection for surface finished metal parts
100%
Batch Verification
Quality Assurance

Process Consistency & Quality Control

Surface finishing quality is controlled through systematic inspection and process parameter monitoring. Surface finish requirements are documented and verified before shipment.

1

Pre-treatment Inspection

Material verification and surface preparation assessment

2

Process Parameter Monitoring

Real-time control of temperature, time, and chemical concentration

3

Post-treatment Verification

Visual, dimensional, and coating thickness checks

4

Batch Consistency Verification

Sample testing to ensure uniform quality across production run

✓ Surface finishing processes are controlled to minimize dimensional changes. Critical tolerances are verified after finishing.

Typical Applications

Surface finished parts are widely used across industrial sectors requiring enhanced performance and durability.

Industrial Equipment

Housings, brackets, and structural components requiring corrosion resistance

Automation & Robotics

Precision parts requiring wear resistance and dimensional stability

Electrical Systems

Conductive parts, heat sinks, and electrical enclosures

Thermal Management

Heat exchangers, cooling plates, and thermal interface components

Mechanical Assemblies

Gears, shafts, and mechanical components requiring surface hardness

OEM Components

Custom metal parts for original equipment manufacturers

Frequently Asked Questions

Can you recommend the right surface finish for my application?

Yes. Our team can recommend suitable finishing options based on material type, operating environment, and functional requirements. We consider factors like corrosion exposure, wear conditions, electrical conductivity needs, and assembly requirements.

Will surface finishing affect part dimensions?

Surface finishing processes are controlled to minimize dimensional changes. Anodizing typically adds 2.5-12.5μm per side, while polishing and brushing remove minimal material. Critical tolerances are verified after finishing to ensure specification compliance.

Can surface finishing be combined with CNC machining?

Yes. Surface finishing is commonly provided as part of our integrated CNC machining services. This ensures optimal workflow coordination, quality control, and delivery timing. We handle the complete process from raw material to finished parts.

What documentation do you provide with finished parts?

We provide material traceability certificates (MTC), dimensional inspection reports, and surface finish verification documentation. Coating thickness measurements and visual inspection records are included where applicable.

Get Expert Advice

Request a Surface Finishing Consultation

Contact our team with your part drawings and application details to receive professional surface finishing recommendations.

Integrated machining and finishing workflow
Engineering-oriented process selection
Material traceability with MTC
Dedicated contact for every order

Contact Information

Phone

+86 0769 81886021 / +86 81886025

Mobile: +86 15625895257 / +86 18128535118

Email

sales@ycsmachining.com

ycsmachining@yeah.net

Address

No.127, DeZheng East Road, Chang'an Town

Dongguan City, Guangdong Province, China 523800

Business Hours

Monday - Friday: 8:00 - 18:00

Saturday: 9:00 - 17:00

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