Kovar CNC Machining for Aerospace & Defense Electronics
Hermetic packages, RF/microwave housings, and high-reliability components machined from Kovar (ASTM F15) and Fe-Ni-Co alloys. Precision burr-controlled CNC machining with material traceability and engineering support from prototype through low-volume production.
What We Machine
Precision Kovar components engineered for hermetic sealing, RF performance, and mission-critical defense and aerospace assemblies.
Housings, Lids, Covers & Caps
Hermetic enclosures and sealing components with controlled flatness, parallelism, and burr-free edges for glass-to-metal and ceramic-to-metal packages.
Sealing Rings, Frames & Flanges
Precision-machined rings and frames for hermetic feedthroughs, connector interfaces, and vacuum-sealed assemblies requiring stable sealing surfaces.
RF, Microwave & Photonics Modules
Complex housings and mounting structures for radar, T/R modules, IR detectors, laser systems, and millimeter-wave packages with tight tolerance features.
Precision Bases & Mounting Structures
Flanges, bases, and support components for inertial sensors, avionics, satellite payloads, and high-vacuum electronic assemblies.
Prototype through Low-Volume Production
From single prototype pieces to repeatable low-volume batches with material traceability, inspection documentation, and consistent process control.
Complex Features & Custom Geometries
Multi-axis machining of intricate internal cavities, thin-wall sections, small features, and precision alignment structures tailored to your design.
Why KELTRYN for Aerospace & Defense Electronics
Built from the ground up for Kovar machining. Our process, people, and systems are designed around the unique demands of hermetic, high-reliability components.
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01
Built for Hermetic Sealing Success
Control of sealing lands, parallelism, flatness, and edge quality to support glass-to-metal and ceramic-to-metal seal integrity.
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02
Thin-Wall & Small-Feature Expertise
Specialized fixturing, heat input management, and stress-controlled toolpaths to minimize deformation in delicate geometries.
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03
Burr-Controlled Machining
Restrained cutting strategies and staged deburring processes designed to protect sealing interfaces and critical assembly features.
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04
Documentation & Traceability
Material certifications, lot control, inspection reports, and clear build records to support prototype-to-production continuity.
Applications We Support
High-reliability systems that depend on precision-machined Kovar components for hermetic sealing, thermal management, and structural integrity.
RF/Microwave & Millimeter-Wave Packages
Enclosures and housings for radar, communication, and sensing systems requiring stable dielectric performance and hermetic integrity.
Radar & T/R Module Components
Housings, lids, rings, and frames for transmit/receive modules in phased-array radar systems.
Avionics & Flight Electronics
Hermetic enclosures for flight control, navigation, and communication subsystems in aerospace platforms.
Laser, Photonics & IR Detectors
Precision housings and mounting structures for optical and infrared sensor modules requiring dimensional stability.
Inertial Sensors & Ruggedized Instruments
Gyroscope and accelerometer packages, plus instrument enclosures for harsh-environment defense and aerospace use.
Satellite Payload & High-Vacuum Assemblies
Components for space-borne electronics and vacuum-sealed scientific instruments with strict outgassing and reliability requirements.
Core Services
CNC Turning & Milling
Precision multi-axis material removal for complex Kovar geometries.
Multi-Axis Machining
Simultaneous 4- and 5-axis capability for intricate features.
Prototype & Low-Volume
From single pieces to repeatable production batches.
Deburring & Finishing
Edge conditioning and surface preparation for sealing.
Material Focus
- Kovar / ASTM F15 / Fe-Ni-Co alloy — matched thermal expansion for hermetic glass and ceramic seals.
- Machining strategies tailored to alloy behavior: heat/work-hardening control, stability, and edge quality.
Quality, Traceability & Documentation
- Material certificates and lot traceability maintained for every batch.
- Inspection reports and dimensional documentation available upon request.
- Process discipline centered on sealing-critical features, repeatability, and cosmetic requirements.
Typical Precision & Finishes
Every part is unique, but for many aerospace/defense electronics components we regularly support the following capability ranges:
Dimensional tolerances on critical features
Flatness/parallelism on sealing lands
Surface finish on sealing surfaces
Thin-wall/small-feature capability
Final capabilities depend on part size, wall thickness, and feature stack-up. We provide case-specific DFM feedback and process plans.
Design-for-Manufacturability Tips for Hermetic Packages
Practical guidance to improve manufacturability, reduce risk, and ensure sealing reliability in Kovar components.
Define Sealing Land Geometry
Clearly specify sealing land widths, flatness, and parallelism. Call out critical-to-seal surfaces on your drawing.
Align Internal Radii to Tool Access
Specify internal corner radii compatible with available tooling. Sharp internal corners drive risk and cost.
Support Thin Walls
Maintain support ribs or temporary material where possible. Provide relief for tool entry and exit.
Include Plating Allowances
Specify plating/finish requirements and allowances on the drawing. Indicate zones to protect or mask.
Balance Material Removal
Maintain balanced stock removal to minimize distortion. Avoid abrupt section changes near seal areas.
Define Edge Break Requirements
For lids/caps, specify edge break or chamfer requirements. Controlled edges reduce burr risk and assembly damage.
We are happy to review early CAD and drawings to suggest adjustments that improve manufacturability and sealing reliability.
Who We Work With
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Mechanical, Manufacturing, Process & Packaging Engineers
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