As an engineer at BERGEK, an ISO 9001 certified 5-axis CNC machining manufacturer, I know that advanced surface finishing is not just an afterthought—it's often the deciding factor between a good part and a perfect solution. For aerospace, automotive, and medical device customers, the combination of 5-axis CNC machining and robust surface treatment directly impacts both performance and compliance.
Advanced Surface Finishing Techniques in 5-Axis Machining
As an engineer at BERGEK, an ISO 9001 certified 5-axis CNC machining manufacturer, I know that advanced surface finishing is not just an afterthought—it's often the deciding factor between a good part and a perfect solution. For aerospace, automotive, and medical device customers, the combination of 5-axis CNC machining and robust surface treatment directly impacts both performance and compliance.
Why Surface Finish Matters in Precision CNC Parts
High precision CNC machining delivers the geometry and tolerances, but surface finish controls how your component interacts with other parts, fluids, or the environment. Surface treatments can affect corrosion resistance, wear, electrical conductivity, and even aesthetics. With multi-axis CNC machining, we access all part surfaces in a single setup, ensuring even the most complex features receive consistent finishing.
Key Surface Finishing Processes at BERGEK
- Anodizing (ISO 9001 certified)
- Creates a durable, corrosion-resistant oxide layer on aluminum parts.
- Available in clear, black, or color finishes for functional or cosmetic applications.
- Common for aerospace CNC machining surface finish and electronics housings.
- Powder Coating (ISO 9001 certified)
- Applies a uniform, robust protective layer in a wide range of colors.
- Ideal for automotive CNC machining finishing and industrial components.
- Nickel Electroplating (ISO 9001 certified)
- Deposits a thin, hard nickel layer for wear resistance and enhanced conductivity.
- Widely used in medical device CNC parts finishing and high-contact mechanical parts.
- Black Oxide (ISO 9001 certified)
- Provides a matte, corrosion-resistant finish on steel.
- Used for tool components and appearance-critical metal parts.
- Custom Solutions
- Combination finishes (e.g., anodizing plus selective powder coating) for demanding specifications.
- Custom polishing, bead blasting, and textured surfaces to meet unique OEM requirements.
How BERGEK Ensures Quality at Every Step
As an ISO 9001 CNC machining manufacturer, every finishing process is fully integrated with our CNC quality assurance system:
- In-process inspections and sample coupons verify coating thickness, adhesion, and uniformity.
- CNC parts inspection services include roughness (Ra) measurement, visual checks, and salt-spray/corrosion testing.
- All jobs are documented with traceable batch records—essential for regulated industries and global supply chains.
Real-World Example: Multi-Axis Machining Meets Medical Device Compliance
A leading medical OEM approached BERGEK for custom titanium enclosures requiring Ra < 0.8μm surface finish, combined with both anodized and nickel-plated features. Our 5-axis CNC setup allowed complete machining in a single clamping, followed by automated masking and dual surface finishing—all tracked with ISO 9001-compliant quality reports. The result: flawless functional performance and zero defects across the batch.
Why Choose BERGEK for Surface Finishing Excellence?
From prototype to production CNC and beyond, BERGEK combines the flexibility of multi-axis CNC machining with advanced finishing and world-class quality management. Our engineering team reviews every part drawing, recommends the best finishing processes, and delivers fully compliant, ready-to-assemble parts—on time and to spec.
Contact BERGEK to discuss your project’s unique finishing requirements. We deliver performance, consistency, and traceability—every time.
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