What Is CNC Precision Machining?

CNC (Computer Numerical Control) lathes, mills, and machining centers use G-code to control cutting tools and achieve specified tolerances and surface roughness. The method offers high repeatability, low error margins, and short cycle times.

Machines & Tooling

• CNC Turning: OD/ID turning, grooving, threading, tapers.
• CNC Milling / Machining Centers (3–5 axis): Pockets, slots, profiles, 3D surfaces.
• Cutting tools: Carbide inserts, coated end mills, hole-making systems.
• Workholding: Magnetic/vacuum tables, custom fixtures, collet systems.
• CAM Software: Toolpath optimization, simulation, collision avoidance.

Process Workflow

1. Data & revision check: STEP/IGES, DWG/DXF, PDF drawing verification.
2. Manufacturing plan: Operation order, tool selection, cutting speeds/feeds.
3. Programming: CAM and/or on-machine G/M codes.
4. First Article Inspection (FAI): Validate critical dimensions and adjust if needed.
5. Production: SPC-backed runs with in-process checks and records.
6. Secondary processes: Heat treatment, anodizing/galvanizing, grinding.
7. Final inspection & shipping: Measurement report and protective packaging.

Quality Control & Metrology

• Compliance with GD&T requirements on drawings.
• Metrology: Calipers, micrometers, indicators, surface roughness (Ra), go/no-go gauges.
• Advanced (optional): CMM/3D scanning, optical comparators.
• SPC & traceability: Statistical process control on critical features and documented results.

Materials

Steels (S235, C45, 4140), stainless steels (304/316), aluminum (6061/6082/7075), brass/bronze, cast alloys, and engineering plastics like POM, PA6, PTFE.

Cost Drivers

• Tolerances & Ra targets: Tighter specs require more operations and time.
• Geometry complexity: 5-axis work, special fixtures, and tooling may be needed.
• Material: Hard alloys impact tool life and cycle times.
• Quantity & lead time: Unit cost differs between prototypes and series production.
• Secondary processes: Heat treatment/coatings add cost and lead time.

Applications

• Automotive, machinery, and automation parts
• Medical, food, and chemical process components
• Energy and defense industry parts
• Molds, fixtures, and tooling

See our services and references, or contact us with your drawings.

FAQ

How tight are your tolerances?

Depending on geometry and verification method, we work to micron-level tolerances. The target tolerance is stated in the quotation and plan.

Do you handle low-volume prototypes?

Yes. Our process is optimized for fast turnaround and consistent quality in small batches.

Can you provide measurement reports?

On request, we deliver FAI/final inspection reports, Ra measurements, and traceability records.