AXALLOY Precision
Electropolishing Services for Precision Machined Alloys
Achieve Ultra-Clean, Flawless Surfaces for Critical Components
At AXALLOY Precision, we understand that for high-value components used in demanding industries, the machining process isn't complete until the surface finish meets exact specifications. As a specialized CNC machining partner for difficult-to-machine alloys, we provide comprehensive surface finishing solutions, including electropolishing, to support international engineering, procurement, and quality teams.
Whether you are developing medical devices, semiconductor equipment, or aerospace components, our controlled electropolishing processes ensure your parts achieve superior corrosion resistance, micro-smoothness, and absolute cleanliness.
Why Specify Electropolishing for Difficult Alloys?
Electropolishing is an electrochemical process that removes a microscopic layer of material from the surface of a machined part. Unlike mechanical polishing, it is non-abrasive and leaves no directional lines, making it the ideal finishing choice for complex geometries, thin walls, and critical interfaces.
For the difficult alloys AXALLOY specializes in, electropolishing offers critical advantages:
Superior Surface Finish
Reduces surface roughness (Ra) significantly, easily achieving ultra-smooth finishes down to Ra 0.2 μm or better, eliminating microscopic peaks and valleys.
Enhanced Corrosion Resistance
Naturally passivates stainless steels and specialty alloys by enriching the surface with chromium or titanium oxides.
Micro-Deburring
Effortlessly removes microscopic burrs from intersecting holes, complex contours, and precision threads (down to M1.0) without altering part geometry.
Ultra-Clean Surfaces
Removes embedded tooling contaminants and free iron, which is critical for semiconductor vacuum environments and medical applications.
Stress Relief
Removes the stressed, amorphous outer layer of metal caused by cutting tools, improving the fatigue life of aerospace and energy components.
Materials We Electropolish
Our engineering team carefully evaluates material behavior before defining the machining and polishing process. We routinely machine and facilitate electropolishing for:
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Stainless Steels: 304, 316L, 17-4 PH, 15-5 PH (Ideal for medical and semiconductor parts).
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Duplex & Super Duplex: Duplex 2205, Super Duplex 2507.
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Titanium Alloys: Titanium Grade 2, Grade 5, and Grade 23 (Critical for medical implants and aerospace).
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Nickel & Specialty Alloys: Inconel 718/625, Hastelloy C-276, and Nitinol.
The AXALLOY Approach: DFM for Electropolished Parts
Electropolishing removes a precise, uniform amount of material (typically 0.005 mm to 0.025 mm). Because AXALLOY caters to customers who value process control and manufacturability, we don't just machine a part and send it to be polished.
Our engineers provide upfront Design for Manufacturability (DFM) feedback. We calculate the exact material removal rate of the electropolishing process and adjust our pre-polish CNC turning and 5-axis milling dimensions accordingly. This ensures that even after electropolishing, your components still hold strict requirements:
±0.005 mm
Precision Dimensional Tolerances
0.008 mm
Concentricity
0.005 mm
Flatness
Thread Integrity: Protecting critical internal and external threads from over-polishing.
Industry Applications
AXALLOY is the best-fit manufacturing partner for industries that cannot compromise on surface integrity:
Medical Devices
Surgical instruments, bone screws, and Nitinol components requiring sterile, burr-free, and highly biocompatible surfaces.
Semiconductor Equipment
Gas manifolds, vacuum chamber components, and fluid delivery systems requiring ultra-low Ra finishes to prevent outgassing and particle contamination.
Aerospace & Energy
Valve bodies, nozzles, and impellers machined from Inconel or Hastelloy that require stress-relieved, highly aerodynamic, and corrosion-resistant surfaces.
Uncompromising Quality Control and Documentation
We know that for Supplier Quality Engineers and Quality Managers, a polished part is only as good as its documentation. AXALLOY operates in a temperature-controlled inspection environment with calibrated equipment to verify both dimensional accuracy and surface finish.
When you order electropolished components from AXALLOY, we provide comprehensive, project-specific quality records:
- Surface Roughness Reports: Verified using advanced surface roughness testers (capable of measuring Ra 0.05–40 μm).
- Full Dimensional Inspection & FAI: CMM and optical measurement reports verifying dimensions post-polishing.
- Certificates of Conformance (CoC): Verifying that the electropolishing process meets your specified industry standards (e.g., ASTM B912).
- Material Traceability: Complete Material Test Reports (MTR) and Mill Test Certificates for the base alloy.
Ready to Start Your Project?
AXALLOY Precision supports projects from high-value engineering prototypes (1–20 parts) through low-volume and controlled batch production (up to 10,000+ parts). If you are transferring a complex project from an unreliable supplier or launching a new product that requires precision machining and flawless electropolishing, we are ready to help.
Submit your RFQ today for a comprehensive technical review.
For the most accurate DFM feedback and quoting, please provide complete 2D drawings (PDF) and 3D models (STEP, IGES, SLDPRT), explicitly calling out critical dimensions, material grades, and final surface finish (Ra) requirements.
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