Start with the copper grade and part function
CNC milling copper parts requires the grade and condition to be clear because conductivity, strength, machinability and forming history vary by alloy. âCopperâ alone may not identify the stock required for a component. If the drawing specifies a designation or temper, include it with the model.
For material selection, see our copper material overview and the page for C10100 copper. This page focuses on a machined-part request rather than a general guide to copper grades. Related machining options are outlined on our CNC milling service page.
Define the features that affect machining
- Identify thin sections, deep pockets, narrow slots and small internal radii.
- Call out hole position, flatness or other relationships that affect assembly.
- Specify the required surface condition and any deburring or finish operation.
- State quantity, material condition and whether stock is customer-supplied.
Tool selection and cutting conditions depend on the specific alloy, geometry and setup. A generic speed or feed value is not a reliable production specification. We review the drawing and confirm the proposed scope for the actual part.
Make inspection requirements measurable
Mark critical dimensions and their datums. If a feature needs to be measured after plating, coating or another treatment, say so. When electrical or thermal performance matters, specify the applicable acceptance requirement; machining alone does not establish a materialâs measured conductivity.
To request a quotation, send the drawing revision, copper grade, quantity, finish and delivery destination.