Aluminum 3D Printing

✓ Rapid prototyping to production, MOQ = 1 piece.

✓ Lightweight & high strength-to-weight ratio (up to 30% lighter than steel).

✓ AI-powered defect detection for zero porosity builds.

Why 3D Printed Aluminum Lightweight & Thermal Applications

Laser-based SLM technology maximizes aluminum’s potential:

Unmatched precision for complex geometries (thin walls, internal channels, lattice structures).

Laser-based SLM technology maximizes aluminum’s potential:

• Weight reduction critical for EVs and aerospace (e.g., satellite brackets)

• Thermal conductivity 3x higher than titanium (160-200 W/m·K)

• Design freedom for hollow lattices and conformal cooling channels

Parameter AlSi10MgAlSi7MgScalmalloy®
Particle Size (μm) 20-63 (SLM optimized)15-45 (SLM optimized)15-53 (SLM optimized)
Flowability (ASTM B213) 25s/50g23s/50g28s/50g
Apparent Density (g/cm³) 1.401.351.45
Oxygen Content (ppm) ≤800≤700≤500
Sphericity ≥0.90≥0.92≥0.88

APTPROTOTYPE offers aerospace-grade aluminum powders compliant with AMS 4289 and ASTM F3318, optimized for laser fusion processes.

Material Grade	Key Advantages	Target Industries
AlSi10Mg 3D printing	Balanced strength (UTS 400 MPa), cast-like properties	Automotive brackets, drone frames
AlSi7Mg (A357) 3D printing	High ductility (≥10% elongation), anodizable	Aerospace housings, heat exchangers
Scalmalloy 3D printing	Airbus-certified, UTS 520 MPa	Satellite components, robotic arms

• Argon atmosphere with O₂ <100 ppm during printing

• Powder sieving & drying cycles to maintain flowability

• AlSi10Mg: Achieves 99.5% density as-printed

• Scalmalloy®: T6 heat treatment for 520 MPa UTS (Airbus AMS 4289)

• AlSi7Mg: Passes NADCAP non-destructive testing

• Topology optimization for 40% weight reduction

• In-situ stress relief during printing

• Aerospace: Fuel tank brackets with 50% weight savings vs. CNC

• Automotive: EV battery cooling plates with serpentine channels

• Consumer: Customizable bike frames (Ra 10 μm as-built)

Enhance aluminum parts with:

✓ Surface finishing: Bead blasting (Ra ≤6 μm), hardcoat anodizing

✓ Heat treatment: T6 aging (160°C/10h) for AlSi10Mg

✓ CT scanning: Porosity analysis per ASTM E1444

Q: How much does aluminum 3D printing cost in China?

A: Total Cost = Material (¥300-800/kg) + Printing (¥4-10/g) + Post-processing. Bulk orders (>5kg) enjoy 20% discount.

Q: What’s the maximum part size for aluminum?

Maximum Build Size (L×W×H)	Compatible Stainless Steel Materials	Typical Applications
400 × 400 × 400	AlSi10Mg, Scalmalloy®	Drone motor mounts, UAV wings AlSi7Mg
600 × 600 × 600	AlSi7Mg	Aircraft ducting, EV radiators

Q: Can aluminum parts match CNC strength?

Yes – SLM parts exceed forged 6061-T6 strength by 25%.

With 20 years of growth and innovation, we are committed to providing the best digital manufacturing experience in the industry.

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