Precision Kovar® (ASTM F15) Machining Services
Factory-direct CNC turning and milling for controlled-expansion iron-nickel-cobalt alloys. Engineered specifically for hermetic sealing packages, vacuum applications, and critical optoelectronic sub-systems.
Technical Profile
| Linear Tolerance: | Geometric Control: | Surface Finish: | Standard Compliance: | Certification: |
| [±0.005 mm] | [True Position 0.01 mm // Concentricity 0.005 mm] | [Ra 0.4 μm to Ra 0.8 μm (As-Machined)] | [ASTM F15 / MIL-I-23011 Class 1] | [100% Material Certs & Heat Lot Traceability Provided] |
GLOBAL COMPLIANCE VERIFIED: All raw materials utilized by Dawnmill are supplied with full traceability logs, including mill test reports (MTR). Compliant with RoHS 3 (Directive 2015/863/EU), REACH regulations, and DFARS specialty metals sourcing standards upon request.
Engineering Obstacles & Our Solutions
Mitigating Work-Hardening & Thermal Stress in ASTM F15 Alloys.
The Challenge:
Kovar is notoriously gummy and prone to severe work-hardening during mechanical cutting. Improper tool selection or incorrect feed rates will induce residual micro-stresses, altering the material’s precise thermal expansion profile and destroying hermetic glass-to-metal seals.
Our Solution:
Dawnmill’s production engineers utilize specialized carbide tools with sharp-edge geometries and optimized multi-pass step-down paths. By implementing high-pressure, flood-coolant thermal regulation and mandatory post-machining stress-relief annealing, we guarantee the structural and thermal integrity of every Kovar enclosure.
Ready to Bring Your Design to Life?
Eliminate the middleman. Get direct technical support and an accurate, factory-direct quote within 24 hours.
+8615631704237
info@dawnmill.com
Nanpi County Economic Development Zone, Cangzhou City, Hebei Province
DATA PROTECTION COMPLIANT: All transmitted data and uploaded CAD geometry are fully encrypted under secure protocols. Your intellectual property is safe with us. We strictly adhere to Non-Disclosure Agreements (NDA) prior to downloading or analyzing any drawing file.