CNC and EDM Machining for Mold Components and Precision Parts
Machining supports the dimensional, surface, and assembly requirements of mold components and precision parts. Process selection is based on the geometry, material, datum plan, tolerance, surface finish, quantity, and inspection method.
Process selection by feature
CNC milling
Plan workholding, datum references, tool access, roughing, semi-finishing, finishing, and inspection for cores, cavities, inserts, fixtures, and complex metal parts.
Wire EDM
Use for through profiles, punches, inserts, and detailed conductive components where the approved geometry and finish require an electrode-free cut.
Sinker or ram EDM
Consider for deep ribs, sharp internal details, small features, and geometries where an electrode-based process is appropriate.
Grinding and finishing
Coordinate surface grinding, deburring, polishing, nitriding, laser marking, vibratory finishing, or other agreed operations where they affect the finished component.
The datum and tolerance plan comes first
A drawing should identify the features that control fit, function, and interchangeability. The machining review connects those features to datums, workholding, sequence, measurement access, surface finish, and the interface with the core, cavity, insert, slide, lifter, electrode, fixture, or assembly. No single tolerance is assumed for every material and process.
Materials and outside processes
The public machining capability information lists aluminum, brass, H13, P20, beryllium copper, and stainless steel. The selected material should reflect wear, corrosion, polish, resin behavior, volume, and application. The quotation should make clear which operations are performed in-house and which are coordinated with a qualified outside processor.
Machining handoff
01
Review
Compare CAD, drawing, material, quantity, finish, critical dimensions, and assembly interfaces.
02
Plan
Set datums, workholding, machining sequence, EDM details, finishing, and inspection points.
03
Machine
Complete CNC, EDM, grinding, and agreed secondary processes for the approved component.
04
Inspect
Check critical dimensions, surfaces, and assembly interfaces against the approved requirements.
05
Fit or deliver
Continue into mold fitting and assembly or pack the approved precision component for delivery.
Need a machining feasibility check?
Send the drawing, CAD file, material, critical tolerances, surface finish, quantity, assembly context, and target date.