Processes

CNC Machining Process Guide

CNC milling/turning process principles, equipment specs, materials and precision grades. ±0.01mm accuracy for precision metal and plastic parts.

CNC Machining Process Guide

CNC Machining

CNC (Computer Numerical Control) combines traditional subtractive manufacturing with digital control for high precision and broad material range.

Machining Methods

  • 3-axis milling: standard plane and cavity machining
  • 5-axis simultaneous: complex surfaces, multi-face in one setup
  • CNC turning: rotational parts, OD/ID/threading
  • Mill-turn: turning + milling in one setup

Key Parameters

  • Accuracy: ±0.01mm (3-axis) / ±0.005mm (5-axis)
  • Surface finish: Ra 0.4-3.2μm
  • Max dimensions: 1500×800×700mm

Materials

Aluminum, stainless steel, carbon steel, copper alloy, titanium, engineering plastics (POM/PA/PC/PMMA).

Pros & Cons

  • Pros: extreme precision, material properties, excellent surface, low cost at volume
  • Cons: complex internal cavities limited, tooling cost (exterior only), minimum batch economics
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