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DMLS Metal 3D Printing

Metal parts with
geometry CNC can't reach.

Direct Metal Laser Sintering for titanium, aluminum, stainless steel, Inconel and tool steel. Topology-optimized brackets, conformal cooling channels, lattice structures — production-qualified with HIP and post-machining.

01 · Materials

DMLS alloys in stock.

Ti-6Al-4V

Grade 5 titanium. High strength-to-weight, biocompatible (Grade 23 ELI). Yield 828 MPa, density 4.43 g/cc.

Applications
Aerospace brackets, medical implants, dental, motorsport

AlSi10Mg

Aluminum-silicon casting alloy. Excellent for thin walls and complex geometry. Yield 240 MPa, density 2.67 g/cc.

Applications
Heat exchangers, lightweight brackets, motorsport

316L Stainless

Marine-grade, corrosion-resistant austenitic stainless. Yield 530 MPa (as-printed), density 7.99 g/cc.

Applications
Chemical, food, medical fixtures, underwater

17-4 PH Stainless

Precipitation hardening. Yield 1100 MPa after H900 heat treat. Higher strength than 316L.

Applications
Aerospace structural, high-strength fixtures

Inconel 718

Nickel superalloy. Retains strength at 700°C. Yield 1036 MPa (aged), density 8.19 g/cc.

Applications
Hot-section aerospace, turbines, exhaust

Inconel 625

Nickel-chromium superalloy. Excellent oxidation resistance. Yield 760 MPa, density 8.44 g/cc.

Applications
Chemical processing, marine, heat exchangers

Maraging Steel MS1

Tool steel 1.2709. High strength with dimensional stability. Yield 1900 MPa after aging.

Applications
Tooling inserts with conformal cooling

Cobalt Chrome

CoCrMo (F75). Biocompatible, wear-resistant. Common in dental and orthopedic implants.

Applications
Dental frameworks, orthopedic implants

Copper CuCrZr

Chromium-zirconium copper. High conductivity with strength. Heat-sink and electrical applications.

Applications
Heat sinks, induction coils, high-current
02 · What only DMLS enables

Geometries that break CNC.

DMLS is rarely the cheapest way to make a simple part. It dominates when the part geometry is impossible — or nearly impossible — any other way.

Topology-optimized brackets

Organic weight-reduced shapes from generative software (nTopology, Fusion 360). Aerospace brackets routinely 40–60% lighter at equal stiffness.

Conformal cooling channels

Curved cooling channels follow the part geometry rather than straight drilled holes. Cuts injection mold cycle time 15–40% in tool inserts.

Lattice and gyroid structures

Internal lattices reduce weight, absorb impact, or act as heat exchangers. Impossible to machine; trivial to print.

Integrated assembly reduction

Multi-part assemblies become one-piece DMLS parts. Eliminates fasteners, seals, tolerance stack-up. Example: GE Catalyst turboprop reduced 855 parts to 12.

Functionally graded density

Solid walls transitioning to internal lattice in a single print. Structural stiffness where needed, weight savings elsewhere.

Hybrid DMLS + CNC workflow

Print near-net shape in DMLS, then CNC-machine critical mating surfaces. Best of both worlds: complex geometry + precision interfaces.

FAQ

Metal 3D printing questions.

Titanium Ti-6Al-4V (Grade 23, medical-grade ELI available), aluminum AlSi10Mg, stainless steel 316L and 17-4 PH, Inconel 625 and 718 (superalloys), maraging tool steel MS1 (1.2709). Custom alloys may be available with 4–6 week lead time depending on powder availability.
Our DMLS system has a build envelope of 250 × 250 × 300 mm. Larger parts must be split and welded or fastened. For parts up to that size, we can pack multiple parts into one build to reduce per-part cost.
As-printed tolerances are ±0.1 mm or ±0.2% of the feature dimension, whichever is greater. Surface finish is Ra 6–10 µm as-printed (rough). For precision mating features and smoother finishes, we recommend hybrid workflow: DMLS print + CNC finish of critical surfaces. This achieves ±0.01 mm tolerances on bearing seats, threaded holes, and alignment features.
Yes. Hot Isostatic Pressing (HIP) for porosity reduction, solution annealing, age hardening, and stress relief. HIP is standard for flight-critical aerospace parts, taking as-printed density from 99.8% to 99.99%+ and closing internal voids. We work with vetted certified HIP partners.
DMLS is production-capable. Our aerospace customers use it for flight-qualified brackets, medical customers for implantable titanium components (with post-processing), and motorsport teams for optimized brake calipers and suspension components. For runs above ~200 parts, compare total cost against CNC or investment casting.
DMLS enables geometries CNC cannot reach: organic weight-optimized shapes (typically 40–60% lighter than machined equivalent), internal lattice structures, conformal cooling channels in mold inserts, integrated features that would otherwise require assembly. Combined with generative design software, topology-optimized DMLS parts are transforming aerospace brackets and motorsport components.
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