Precision CNC Turning Parts

A: CNC turning is mainly suited to rotational components such as shafts, pins, bushings, sleeves, spacers, fittings, threaded parts, rollers, and cylindrical components. Parts containing flats, slots, cross holes, or other non-rotational features may require additional milling or drilling.

A: The current published capability supports parts up to 431 mm in diameter and 990 mm in length. The practical limit for an individual component also depends on its geometry, material, clamping method, and machining requirements.

A: Common materials include aluminum, stainless steel, carbon steel, alloy steel, brass, copper, and engineering plastics. The exact material grade should be specified because different grades can have different mechanical and machining
characteristics.

A: General tolerances depend on the nominal dimension and material. For metal parts, the published general tolerance is plus or minus 0.10 mm for dimensions over 6 mm to 30 mm and plus or minus 0.20 mm for dimensions over 120 mm to 400 mm.

A: Yes. CNC turning can produce both external and internal threads. The drawing should specify the thread standard, nominal diameter, pitch, depth, and required fit.

A: Yes. Depending on the material and application, finishing options can include anodizing, passivation, zinc plating, chemical plating, polishing, brushing, powder coating, painting, and other finishing processes.

A: Yes. Components with flats, slots, cross holes, or other non-rotational features may require secondary milling or drilling operations. The appropriate process depends on the part geometry and production requirements.

A: The most useful information includes a 2D drawing, 3D CAD model if available, material grade, quantity, critical tolerances, surface treatment, thread requirements, inspection requirements, and delivery schedule.