KRC ManufacturingCustom parts
New Knoxville, Ohio
CNC materials / KRC Manufacturing

Copper CNC Machining

Machining guidance for conductivity-driven components and other designs where the copper grade matters.

PRACTICAL DESIGN GUIDANCE · UPDATED OCTOBER 2026
CNC / MATERIAL STUDYKRC / FIELD NOTES
Copper CNC Machining — technical illustration
Illustrative material study · not a customer part
ExamplesThermal spreaders, Contact blocks, Conductive adapters
RouteCustom RFQ
GeometrySolid STEP / STP
RequirementsGrade, revision, fits, and finish
The useful starting point

Choose copper for a defined thermal or electrical requirement, then verify the grade and geometry against that requirement.

01 /

Material overview

Copper is valued for thermal and electrical conductivity, but different copper alloys and conditions have different properties. High-conductivity grades can be ductile and more demanding to machine cleanly than free-machining brass. Specify the actual grade rather than simply asking for a copper-colored part.

02 /

Where it fits

Potential geometries include contact blocks, thermal spreaders, and conductive adapters. Electrical performance depends on cross-section, connection resistance, temperature rise, and contact design. A machined material choice does not establish the current rating of an assembly.

03 /

Design considerations

Robust walls, accessible features, and room for burr removal make production easier. Deep narrow slots, delicate fins, and small threads increase difficulty. Large flat contact faces may need a deliberate finish and flatness specification instead of a size tolerance alone.

04 /

KRC ordering route

Copper follows the custom RFQ route because it is not a current instant-quote selection. Define material grade, final dimensions, surface requirements, and any coating in the drawing package. Oxidation and handling can change appearance; cosmetic expectations and functional contact surfaces are separate requirements.

Put the design to work.

Choose the process, verify your files, and take the next step toward a custom part.