CNC Precision Mechanical Parts

Complex / Irregular Parts

Robot arm joints, medical parts, complex cavities

  • Material Titanium TC4, SS 316L, Al 7075, Inconel, PEEK
  • Process 5-axis CNC, turn-mill, WEDM, EDM, precision grinding
  • Tolerance ±0.005mm
  • Lead Time 25-40 days
Complex part — 5-axis CNC + WEDM finishing
Complex part — 5-axis CNC + WEDM finishing

Product Details

We specialize in turn-mill single-setup L fittings, multi-port distributors, and thin-wall support parts — 3-axis perpendicularity ≤0.02mm and PCD ±0.03mm — with electrolytic polishing, passivation, and anodizing for medical, semiconductor, and optical use.

Applications

  • Industrial robot joint parts
  • Medical surgical instrument parts
  • Aerospace structural components
  • Semiconductor equipment parts
  • Optical instrument structures

Typical Size Range

Min
5×5×5mm
Max
500×400×300mm
Other
Weight ≤50kg

Common Materials

Material GradeInternational StandardTypical Application
Titanium TC4 Ti-6Al-4V (Grade 5) Aerospace, medical implants
SS 316L AISI 316L Medical, food grade
Aluminum 7075-T6 AA 7075-T6 Aerospace structures
PEEK Victrex 450G Medical, semiconductor insulation

Process Capabilities

  • 5-axis CNC simultaneous (complex surfaces one setup)
  • Turn-mill (L three-way, rotating + milling)
  • Multi-face / multi-hole (PCD ±0.03mm)
  • WEDM (thin-wall, special holes, ±0.005mm)
  • EDM (deep slots, blind holes, hard materials)
  • Electrolytic polish / passivation / anodizing (from Ra0.4)

Frequently Asked Questions

What complexity can 5-axis support?

5-axis simultaneous mills angled holes, sculpted surfaces and spatial bosses at any angle — single setup, no re-positioning error.

How are micro deep cavities machined?

Deep cavities with >1:10 L/D use WEDM or EDM, in titanium, stainless or carbide. Minimum hole Φ0.3mm.

Do you offer post-processing (passivation, polish)?

Yes — passivation, electrolytic polish, mirror polish (<Ra0.4), sandblast, anodize and PVD coating are all available.

What inspection reports do you provide?

CMM dimensional reports, surface roughness reports, material spectral analysis, hardness tests and full critical-dimension reports are all available.

Detailed Content

Complex / Irregular Parts

Complex and irregular parts are components with non-standard geometry, multi-face machining and tight tolerances, typically requiring 5-axis simultaneous machining or special process combinations.

Core Process Capabilities

  • Turn-mill single-setup: L-shape three-way fittings and multi-port distributors are turn-milled in one setup, achieving 3-axis perpendicularity ≤0.02mm and avoiding cumulative errors from multiple clampings — ideal for fluid fittings and gas/liquid distribution blocks.
  • Multi-hole precise positioning: Multi-hole groups on end faces are positioned with CNC indexing to PCD ±0.03mm and hole diameter ±0.01mm, completing 5-12 holes in one setup — ideal for valve seats, distributors and spray heads.
  • Thin-wall precision machining: Slim rods, cross spokes and thin-wall sleeves are produced with low-stress fixturing and WEDM, achieving minimum wall thickness 0.3mm with controlled distortion ≤0.02mm.
  • Integrated surface treatment: Supports electrolytic polishing (Ra0.4), passivation, anodizing, PVD coating and more to meet medical cleanliness (Ra≤0.8), food-grade corrosion and semiconductor vacuum requirements.
  • Hard material machining: Difficult materials such as TC4 titanium, 316L stainless, PEEK and Inconel are all machinable; WEDM and EDM can handle parts harder than HRC60.