CNC Milling of a Copper Heat Sink for the Aerospace Industry
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The heat sink highlighted here was manufactured for an aerospace customer. Composed of C11000 copper, this project required a high level of precision. We machined this component utilizing our state of the art precision CNC milling capabilities. The finished part measured 9″ in length, 4″ in width, and 0.5″ thick, the customer supplied drawings called out tolerances of ±0.0005″. After machining, each part was nickel plated per AMS 2404, they were then primed and had a matte finish epoxy coating applied. To learn more about this project, see the table below or contact us directly.

CNC Milling of a Copper Heat Sink – Project Details

Product Description

This heat sink is used to cool an electrical system by dissipating heat into the surrounding air.

Precision CNC Machining Capabilities Applied/Processes

CNC Milling

Epoxy Coating
Electroless Nickel Plating

  • 0.0005″ Thick per AMS 2404
Overall Part Dimensions

Length: 9″
Width: 4″
Height: 0.5″

Tightest Tolerances

± 0.0005″

Material Used

C11000 Copper
Thickness: 0.5″

Material Finish

Epoxy Coated
Color: Matte
Material Finish: Silver
Surface Roughness: 32 RMS

Industry for Use



Less than 100 annually

Standards Met

Customer Specifications, 2D CAD Drawing
ISO 9001

Product Name

Heat Sink

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