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Kovar Machining

Kovar Machining
Details:
Kovar also named Fe-Ni-Co alloy(4J29), featuring ultra-low thermal expansion coefficient, thermal expansion rate closely matches glass, ceramic materials. It is core sealing alloy widely applied for vacuum sealing, glass sealing, electronic packaging field.
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product-800-800

AQ Precision Machining is a trusted supplier of Kovar alloys from China

Kovar also named Fe-Ni-Co alloy(4J29), featuring ultra-low thermal expansion coefficient, thermal expansion rate closely matches glass, ceramic materials. It is core sealing alloy widely applied for vacuum sealing, glass sealing, electronic packaging field.

We provide full customized Kovar CNC precision machining service. Available processes include CNC turning, milling, 5-axis machining, drilling, tapping, fine grooving and thin-wall processing. We process raw blank Kovar bar and plate according to customers' 2D drawings, 3D STEP files or physical samples.

Kovar belongs to hard nickel iron alloy, high toughness, easy to generate cutting heat, severe tool abrasion and built-up edge during machining. Our factory adopts dedicated carbide cutters, stable cutting parameters and strict cooling scheme to guarantee smooth surface finish and consistent dimensional accuracy. We support prototype trial production, small batch and mass bulk orders.

 

 

FAQ

1.What tolerance can Kovar machined parts reach?

Standard dimensional tolerance keeps ±0.01~0.05mm. Critical sealing surfaces and tiny features can reach tighter precision standard.

2. Why is Kovar difficult to machine?

Kovar iron-nickel alloy owns high tenacity. Cutting generates massive heat, causes fast tool wear and rough surface. We adopt professional carbide cutters and optimized cutting parameters to overcome these defects.

3.Do you customize Kovar parts per drawings or samples?

Yes. We accept PDF/DWG/STEP drawings or physical samples. our technical team will evaluate process and quotation professionally.

4.What post treatments for finished Kovar components?

Precision deburring, surface grinding, chemical passivation, nickel plating, gold plating are mainstream treatments for Kovar sealing parts.

5.Can you process thin-walled Kovar sealing housings?

Available. We adopt auxiliary fixture clamping and low-speed stable cutting to prevent thin wall deformation and vibration marks.

6.What is the main usage of machined Kovar parts?

Mostly used for glass-to-metal sealing, electronic packaging, optoelectronic communication, sensor and aerospace hardware components.

 

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