Aluminum CNC Machining Service

CNC Milling (3-Axis to 5-Axis)

High-speed CNC milling on vertical and horizontal machining centers. 5-axis simultaneous capability for complex contours, undercuts, and multi-face machining in a single setup — reducing lead time and improving accuracy.

• → Pocketing, profiling, contouring
• → Thin-wall machining down to 0.5mm
• → Surface finish Ra 0.8 or better
• → Max part size: 1000 x 600 x 500mm

CNC Turning & Mill-Turn

CNC lathes with live tooling for rotational aluminum parts. Shafts, bushings, connectors, and cylindrical housings machined complete in one operation — turning, drilling, and milling without re-fixturing.

• → Max diameter: 400mm
• → Internal and external threading
• → Concentricity within 0.01mm
• → Live tooling for cross-holes and flats

Precision Drilling & Tapping

Accurate hole-making for aluminum assemblies. Deep-hole drilling, reaming, counterboring, and thread tapping (metric and imperial) on CNC machining centers with programmed depth control.

• → Hole position accuracy ±0.025mm
• → Reamed holes H7 tolerance
• → Helicoil inserts available
• → Custom thread sizes on request

Aerospace & Defense

Structural brackets, avionics housings, heat sinks, and flight-critical components in 7075-T6 and 2024-T3 aluminum. We understand AS9100 requirements and provide full traceability with material certificates. Tight tolerances and hard anodize finishes are standard for aerospace aluminum CNC parts.

• → Structural brackets and fittings
• → Avionics enclosures and chassis
• → UAV and drone components
• → Test fixtures and tooling

Automotive & Motorsport

Lightweight aluminum components for powertrain, suspension, and interior applications. From prototype brackets to production intake manifolds, our aluminum CNC machining delivers the dimensional accuracy and surface quality that automotive OEMs and tier-1 suppliers require.

• → Engine and transmission housings
• → Suspension components
• → EV battery enclosures
• → Interior trim and bezels

Electronics & Telecom

Aluminum is the material of choice for electronic enclosures, heat sinks, and RF shielding due to its thermal conductivity and EMI shielding properties. We machine complex fin geometries, tight-tolerance mounting features, and cosmetic surfaces for consumer and industrial electronics.

• → Heat sinks and thermal management
• → Electronic enclosures and chassis
• → PCB housings and card guides
• → 5G antenna brackets

Consumer Products & Medical

Anodized aluminum parts for consumer devices, sporting goods, and medical instruments. Type II anodizing in custom colors delivers the premium look that consumer brands demand. Medical device components benefit from aluminum's biocompatibility and ease of sterilization.

• → Device housings and frames
• → Surgical instrument handles
• → Sporting goods components
• → Lighting fixtures

Wall Thickness

Minimum recommended wall thickness for aluminum is 0.5mm, but 1.0mm or greater is preferred for structural integrity. Thin walls can deflect under cutting forces, causing chatter and dimensional variation. Add ribs or fillets for support on walls below 1.5mm.

Internal Corner Radii

All internal corners will have a radius equal to the cutter radius. Design internal corners with a minimum radius of 1mm (ideally 1.5mm or larger). Sharp internal corners require EDM, which adds cost. Specify the largest acceptable radius to reduce machining time.

Hole Depth & Threading

Standard drilled holes should not exceed 10x diameter in depth. For threaded holes in aluminum, specify a thread engagement of 2x diameter minimum (compared to 1.5x for steel) since aluminum is softer. Consider Helicoil inserts for frequently assembled threads.

Tolerances & Fit

Standard CNC tolerance is ±0.025mm. Only specify tighter tolerances (±0.01mm) on critical mating surfaces — over-tolerancing increases cost without adding value. Aluminum's thermal expansion (23.6 x 10^-6/K) is higher than steel, so account for temperature in precision assemblies.

Surface Finish Callouts

As-machined aluminum typically achieves Ra 1.6-3.2. Specify Ra 0.8 only where functionally needed (sealing surfaces, bearing bores). Mirror polish (Ra 0.1) is possible but expensive. For cosmetic parts, bead blasting followed by anodizing is the most cost-effective approach.

Anodize-Friendly Design

If anodizing is planned, avoid mixing alloys in a single assembly (different alloys anodize to different colors). Specify 6061 or 6063 for the best color consistency. Account for the anodize layer thickness (5-25 microns per side for Type II) in tight-tolerance features.