(800) 398-0790

info@aerospacemetalsllc.com

54 W. Industrial Drive O’Fallon, MO 63366

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our CNC Machining

CNC Turning Service.

Precision turning for small, complex parts with exceptional accuracy and surface finish.
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  • Quick Specifications

Lead Time

7-10 business days

Certifications

ISO 13485

About This Service

Swiss-Type Turning

Swiss-type turning (Swiss screw machining) is designed for small, complex parts requiring extreme precision. The sliding headstock design supports the workpiece close to the cutting tool, enabling exceptional accuracy and surface finish on long, slender parts.

This process excels at high-volume production of precision components like pins, shafts, connectors, and medical implant components. Our partners maintain tolerances to ±0.0001″ with surface finishes to 8 Ra.

  • Extreme precision
  • Complex small parts
  • High-volume capability
  • Excellent surface finish
Our Process

How Swiss-Type Turning Works.

Our streamlined process ensures quality results and on-time delivery for every project.

Design Review

Engineers review your files for manufacturability and optimization opportunities.

Programming

CNC programs developed with optimized toolpaths for efficiency and quality.

Machining

Precision CNC machining with in-process monitoring and verification.

Inspection

Dimensional verification using CMM and precision measuring instruments.

Delivery

Parts finished, documented, and delivered to your specifications.

Industries Served

5-Axis CNC Milling Solutions Across Industries

Aerospace & Aviation

Defense

Medical Services

Electronics

Quality & Certifications

Available Certifications Across Network

Quality isn't just about certifications—it's about consistent results. Every partner facility is personally vetted by Paul Fredericks.

ISO 9001:2015

Quality Management (All Partners)

AS9100 Rev D

Aerospace Quality Management

ISO 13485

Medical

FDA Registered

Technical Specifications

Industry standards and material compatibility for zinc-nickel plating

Compatible Materials

Aluminum

Titanium

Brass

Stainless Steel

PEEK

Medical Alloys

Available Processes

Multi-Spindle

Live Tooling

Back-Working

Sub-Spindle Operations

Frequently Asked Questions

Find answers to common questions about hardcoat anodizing services.

How long does hardcoat anodizing take?

Typical lead time is 10-14 business days from when parts arrive at the facility. The actual anodizing process takes 6-8 hours including pre-treatment, anodizing (45-90 minutes), sealing, and inspection. Expedited service available for critical aerospace/defense projects.

What aluminum alloys work best with hardcoat anodizing?

6061, 7075, 2024, and 5052 produce excellent results. 6061 is most common for general applications. 7075 achieves highest hardness. 2024 is standard for aerospace. Casting alloys (356, 380) produce softer, less uniform coatings due to silicon content.

How thick should the hardcoat be?

Depends on application. Light wear: 0.0008"-0.0015". Standard applications: 0.0015"-0.0025". Heavy wear: 0.0025"-0.004". Thicker isn't always better—excessive thickness increases brittleness and cracking risk, especially on edges and corners.

Will hardcoat anodizing change my part dimensions?

Yes. Coating grows approximately 50% inward and 50% outward. For 0.002" coating, expect +0.001" dimensional change per surface (+0.002" on diameter). Critical dimensions should be masked or designed with coating growth in mind. Threads typically masked or chased after anodizing.

Can hardcoat be applied to welded aluminum?

Yes, but with considerations. Weld areas may anodize differently (lighter color) than base material due to different alloy chemistry. Appearance will be non-uniform but functionality (wear, corrosion resistance) is maintained.

Does hardcoat anodizing meet aerospace specifications?

Yes. When performed to MIL-A-8625 Type III or AMS 2469, hardcoat anodizing meets aerospace requirements. Our Nadcap-accredited partners are qualified for aerospace critical applications and provide complete documentation including FAI when required.

Can I get colored hardcoat?

Yes. Black is most common for functional applications. Gray, gold, olive drab, and other colors available. Note: colors are darker/muted compared to Type II anodizing due to coating density and thickness. Natural (undyed) hardcoat is gray.

What is the wear resistance compared to hard chrome?

Hardcoat anodizing (60-70 HRC) is comparable to hard chrome plating (65-70 HRC) in terms of hardness. However, wear performance depends on specific application. Hardcoat excels for abrasion resistance; hard chrome excels for sliding wear.
Ready to Experience the Aerospace Metals Difference?

Partner with a team that brings 33 years of metal finishing expertise to every project