Manufacturing, grown from powder

Parts are no longer cut.
They grow.

A laser builds your part one hair-thin layer at a time, straight from metal powder. This is metal 3D printing (additive manufacturing) — and it can hide cooling channels inside solid metal, cut weight in half with internal lattices, and merge a 60-part assembly into one piece, while wasting up to 90% less raw material than machining on complex parts. We run every step in-house: design, printing, finishing, inspection, certification.

Request a quote New to metal AM? Start here
6
In-house stages
5
In-house AM systems

Straight off the printer, your part is accurate to about a tenth of a millimeter — and after machining, to half that. The metal comes out over 99.5% solid, with walls as thin as half a millimeter.

As-built tolerance ±0.1–0.2 mm · post-CNC ±0.05 mm · Ra 5–20 µm · density >99.5% · min wall 0.5 mm · ISO 9001 / 14001 / 45001
The future of making

One method. Metal, grown from powder.

Not subtracted, not cast — grown. Three reasons this is the endpoint all manufacturing converges on.
01

Grown, not cut — up to 90% less material

CNC carves your part out of solid billet and turns most of it into chips — on complex titanium parts, over 90% of the metal is wasted. Additive grows the part from powder in layers thinner than a hair, using only the material the design needs. Unmelted powder is sieved and reused.

02

Channels inside solid metal

No drill can curve inside a solid block. A grown part carries cooling channels that follow its contour, internal galleries a few hair-widths wide, honeycomb cores that stay strong at half the weight — sealed inside the metal, impossible to machine after the fact.

03

One method that absorbs the others

Cutting, casting, welding, assembling — separate trades, each with its own tooling and queue. Additive collapses them into one digital step: a sixty-part assembly becomes a single grown piece with no joints to fail. And with no mold to pay off, the first part costs like the five-hundredth.

Jargon decoder — DMLS / SLM / L-PBF: names for the laser-printing process · DfAM: redesigning your part so it prints stronger and cheaper · Post-processing: cleaning, machining and finishing after the print · EN 10204 3.1: the material certificate proving your part's metal · FAI: first-article inspection report.
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Your design, checked before printing

We improve the part on screen, not after the print.

An engineer reviews your 3D file first — wall thickness, supports, the right alloy — and sends back an improved design with a tolerance map. Problems are fixed while they are still free to fix.

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Five in-house AM systems, stated openly

The machine is named on your quotation.

Your build runs on our own floor — no hidden subcontracting. HIP and third-party inspection are coordinated with specialist facilities and disclosed on your quotation. The machine, powder lot and inspection records are named on your quotation and in your traceability package.

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CNC, finishing, inspection in-house

One supply chain, powder to crate.

Support removal, CNC machining, polishing, blasting, passivation, assembly — performed by Zeming's team. One supply chain from powder record to crated part.

Materials & Platforms

Ten alloys. Five in-house systems.
One accountable team.

New to alloys? Titanium = light & strong · stainless = dependable value · aluminum = light & economical · Inconel = extreme heat · cobalt chrome = medical & wear parts. Not sure? We recommend one with your quotation.

Every build runs on our own floor — machine, powder lot and certification are stated on the quotation.
Ti6Al4V Grade 5 (ASTM F2924) powder — metal 3D printing material, 3D DemiurgeTi6Al4V Grade 5ASTM F2924
Ti6Al4V ELI (ASTM F3001) powder — metal 3D printing material, 3D DemiurgeTi6Al4V ELIASTM F3001
Inconel 718 (AMS 5662) powder — metal 3D printing material, 3D DemiurgeInconel 718AMS 5662
Inconel 625 (AMS 5596) powder — metal 3D printing material, 3D DemiurgeInconel 625AMS 5596
AlSi10Mg (ASTM F3318) powder — metal 3D printing material, 3D DemiurgeAlSi10MgASTM F3318
316L Stainless (ASTM F3184) powder — metal 3D printing material, 3D Demiurge316L StainlessASTM F3184
17-4PH (ASTM A564) powder — metal 3D printing material, 3D Demiurge17-4PHASTM A564
Cobalt Chrome (ASTM F3213) powder — metal 3D printing material, 3D DemiurgeCobalt ChromeASTM F3213
Tool Steel MS1 (1.2709) powder — metal 3D printing material, 3D DemiurgeTool Steel MS11.2709
CuCrZr Copper (AMS 5221) powder — metal 3D printing material, 3D DemiurgeCuCrZr CopperAMS 5221
5 × In-house AM systemsL-PBF · DMLS / SLMTitaniumNickel superalloysStainless steelAluminumCobalt chromeTool steel & copper

Full property table for all ten alloys — yield, tensile, hardness, standards →

Why Metal 3D Printing

Metal AM doesn't replace machining.
It does what machining can't.

It's rarely the cheapest way to make a part. It's often the only way to make the part your design actually needs.
01 · Speed

Tested hardware in days, not months

No mold, die, or fixture sits between a design change and a physical part. A custom implant in 4–5 days instead of 6–8 weeks. While a casting house is still quoting the mold, you can hold hardware — and two revisions of it.

GE Catalyst engine cycle: 4–10 years → ~2 years

See the six-stage process →
02 · Materials

Two metals, one part

Copper inside steel, Inconel graded into stainless — metals that can't be welded, fused into one monolithic part with no joint to fail. A printed steel mold pin carrying a copper cooling core runs 100,000+ brushes a day.

−50–66% cycle time on copper-in-steel mold inserts

Explore the alloy portfolio →
03 · Geometry

Internal structure CNC can't reach

A cutting tool only reaches the outside of a part. Metal 3D printing builds from the inside out — conformal cooling channels that follow the part's shape, lattices that keep material only where stress demands it, passageways thinner than a hair.

Cooling time −55% on printed conformal channels

See it in production →

The reframe: metal AM rarely wins on per-part price — it wins on total program cost. Where it changes the economics →

Zeming · Metalworking capability · Representative
Capability

What we own.
What we do.
All under one roof.

Everything is in-house — design review (DfAM, where we improve your part before it prints), the build itself on our five systems, CNC machining, surface finishing, inspection, certification, and export. One floor, stated on every quotation.

No hidden subcontracting — HIP and third-party inspection are disclosed on your quotation. Our floor is open to your audit.

See the full process →

How we deliver

Six stages. One accountable engineer
from CAD to crate.

Design is where the money is saved — before the first gram of powder is melted.

Each project is managed by a single engineer. The build runs on our own floor — the machine and powder lot are named on your quotation and in your traceability package.

Drag or scroll — six stages 01 / 06
Six stages. One accountable engineerfrom CAD to crate. — metal 3d printing service, 3D DemiurgeIN-HOUSE
Stage 01 · DfAM

Design review

We check your 3D file — will it print, in which metal, to which tolerance — and send back a design that's cheaper and stronger to print.

Design review — metal 3d printing service, 3D DemiurgeIN-HOUSE
Stage 02

Machine Selection

We pick the right in-house machine for your part — and write its name on your quotation.

Machine Selection — metal 3d printing service, 3D DemiurgeIN-HOUSE
Stage 03

Build

Your part is printed with logged machine settings and a tracked powder batch — every step documented.

Build — metal 3d printing service, 3D DemiurgeIN-HOUSE
Stage 04

Post-Processing

Printing is half the job. We cut supports, machine, polish and treat the surface — in-house at Zeming.

Post-Processing — metal 3d printing service, 3D DemiurgeIN-HOUSE
Stage 05

Inspection

We confirm the metal is the right alloy (XRF), measure every critical dimension (CMM), and scan inside for flaws (NDT) — with reports you can keep.

Inspection — metal 3d printing service, 3D DemiurgeIN-HOUSE
Stage 06

Cert + Export

Material certificates, inspection reports and export paperwork in one package — shipped under Shanxi Zeming.

Every stage, with the parameters that decide your cost and lead time →

Metal AM part · Internal geometry
/ 01

Metal AM Part

Ti6Al4V · DMLS · In-house
Metal AM part · Complex geometry
/ 02

Metal AM Part

Inconel 718 · DMLS · In-house
Metal AM part · Lattice structure
/ 03

Metal AM Part

Cobalt Chrome · DMLS · In-house
Metal AM part · Production batch
/ 04

Metal AM Part

Production batch · DMLS · In-house
Metal AM part · Finished
/ 05

Metal AM Part

Finished part · DMLS · Post-processed
In-house build chamber · Laser PBF · reference imagery
The numbers

5 printers owned. 6 in-house stages.
100% traceable builds.

Five printers owned. Zero excuses on traceability.

5
Printers owned
100%
Traceable builds
6
In-house stages
10
Alloys qualified
Honest Selection

Which process should make your part?

Metal AM is not always the right answer — and a supplier that says otherwise is selling machine hours, not parts. Here is the selection logic we actually use when quoting.

If your part is… · process selection guide
Your situationRecommended routeWhy
Complex internal geometry — conformal cooling channels, lattices, internal passagewaysMetal AMCNC tools only reach the outside; casting cannot core these shapes
A multi-part assembly you want in one pieceMetal AMPart consolidation removes joints, fasteners and assembly labor
Titanium / Inconel, low quantity, tight deadlineMetal AMNo tooling or mold lead time — Express builds leave in 3–5 days
Mould insert needing conformal coolingMetal AMDrilled straight channels cannot follow the part contour
Simple prismatic or turned parts, quantities of thousandsCNC machiningAM rarely wins on per-part price at volume — we will say so
Large simple shapes, loose tolerances, high volumeCastingOnce the mold is amortized, casting is cheaper per part
Unsure where the crossover sitsSend the CADWe quote AM and the conventional route side by side, with the crossover shown
The rule of thumb: AM wins on total program cost — tooling avoided, waste avoided, assemblies consolidated, weeks of lead time removed. It loses on pure per-part price at high volume. Every quotation we send shows both sides.

Common Questions

Does 3D Demiurge own metal 3D printers?

Yes. Five metal 3D printing systems run in-house at Zeming, alongside design review (DfAM), CNC machining, finishing, assembly, inspection, certification, and export — everything under one roof.

How much does metal 3D printing cost?

A small, simple part typically runs $50–500; a large or complex titanium or nickel part runs $500–10,000+. The print itself is only part of the cost — finishing and quality checks usually decide the final number. We show every line item, so you compare total program cost, not just per-part price.

How long does a typical project take?

Express builds ship in 3–5 days. Standard: 2–4 weeks. Certified aerospace or medical: 4–8 weeks. We quote the timeline stage by stage, because finishing and certification drive lead time as much as the printing itself.

Can you support aerospace programs?

Yes. Aerospace parts print on our in-house laser powder bed fusion (L-PBF) line, with first-article inspection (FAI) documentation managed by our engineering team. We hold ISO 9001, 14001 and 45001; where AS9100D or NADCAP is required by contract, we tell you our exact status up front so you can decide.

How do I get a quote?

Send your CAD to mam@zemsteel.com. We'll respond within 48 hours with a design review (DfAM) and a firm quotation. See pricing details.

Ready to get a part reviewed?

Send a STEP file or drawing to mam@zemsteel.com. Engineering responds within 48 hours with a design review (DfAM) and a firm quotation.

Get a quote →
Ready to get a part reviewed? — metal 3d printing service, 3D Demiurge
Standards ISO/ASTM 52900:2021 (AM terminology) NIST additive manufacturing program