Kovar CNC Milling
Precision Fe-Ni-Co (ASTM F15) Machining for Hermetic and High-Reliability Applications
KELTRYN is a precision CNC machining partner focused on Kovar and Fe-Ni-Co alloy components for hermetic, high-reliability, and demanding engineering applications. We mill custom Kovar (ASTM F15) parts such as housings, lids, caps, sealing rings, flanges, frames, and complex precision components.
Built for Kovar Machining Excellence
Our process is built around the realities of Kovar CNC milling: controlling heat and work hardening, preventing burrs, managing thin-wall deformation, and protecting critical sealing features.
Specialized in Kovar/Fe-Ni-Co Alloys
Exclusively focused on ASTM F15 and Fe-Ni-Co alloys with deep knowledge of their unique machining behavior.
Tight-Tolerance Hermetic Parts
Precision CNC milling for sealing surfaces, thin walls, and critical functional features in hermetic packages.
Burr Control for Sealing Surfaces
Purposeful toolpath strategies and deburring processes that protect edges and hermetic sealing features.
Prototype to Low-Volume Production
Seamless transition from early-stage prototypes through repeatable low-volume production batches.
DFM Feedback Before Machining
Practical design-for-manufacturability guidance to optimize your part for Kovar machining before production.
Full Traceability & Inspection
Material certification, lot-level traceability, and dimensional documentation per your requirements.
Kovar (ASTM F15) Parts We Mill
From hermetic housings to complex multi-feature precision components, our CNC milling capabilities cover the full spectrum of Kovar part geometries.
Hermetic Housings & Enclosures
Precision-milled cavities, sealing lands, and mounting features for electronic packages.
Lids & Caps
Thin-wall covers with controlled flatness and sealing surfaces for hermetic closure.
Sealing Rings & Weld Rings
Burr-controlled ring geometries for glass-to-metal and ceramic-to-metal seals.
Frames, Flanges & Carriers
Structural and alignment components with tight tolerances and thin-wall stability.
Complex Multi-Feature Components
Custom precision parts for optoelectronic, RF, sensor, and vacuum system assemblies with slots, pockets, threads, and fine details.
If your part has sealing lands, thin walls, small slots and pockets, or cosmetic requirements, we can help you turn the design into a production-ready component.
Capabilities at a Glance
CNC Milling & Multi-Axis
For Kovar/Fe-Ni-Co alloys with advanced toolpath strategies.
Integrated Milling + Turning
Seamless workflows for prismatic and turned-milled geometries.
Thin-Wall & Small-Feature
Specialized machining strategies to maintain part stability.
Burr-Controlled Processing
For sealing and assembly surfaces that demand clean edges.
Deburring & Finishing
Per drawing requirements for cosmetic and functional surfaces.
In-Process & Final Inspection
Rigorous quality checks aligned with tight-tolerance drawings.
How We Address the Challenges of Kovar CNC Milling
Kovar's unique material properties demand specialized machining approaches. Here is how KELTRYN delivers consistent, high-quality results.
Thermal Control
Conservative parameters, appropriate coolant strategies, and toolpath planning to manage heat input and dimensional stability during milling.
Work Hardening Mitigation
Sharp tooling, controlled chip load, and step-over/step-down strategies to avoid surface hardening and edge burnishing.
Thin-Wall Stability
Purpose-built fixturing, balanced toolpaths, and optimized machining sequences to prevent distortion on frames, lids, and lightened housings.
RFQ Support
Send Your Kovar Machining RFQ
Share drawings, CAD files, material requirements, quantities, tolerances, finishing needs, inspection requirements, and your target timeline. Our team will review the details and respond by email.
Helpful RFQ details
- 2D drawings or 3D CAD files
- Material: Kovar / ASTM F15 / Fe-Ni-Co alloy
- Quantity, tolerance, finish, inspection needs
- Application and purchasing timeline
Direct email: info@kovarmachining.com