Metal 3D Printing

Trendy offers full-range metal 3D printing services covering SLM, LMD, WAAM and Binder Jetting. We process stainless steel, brass, aluminum alloy, mold steel and other metals. Capable of complex precision components, large-size parts, mold conformal cooling channels & component repair. One-stop solution with in-house CNC post-processing.

Tolerance Options

Trendy delivers reliable and industry‑grade manufacturing performance across a wide range of supported parameters, ensuring stable quality,
precise tolerances, and consistent results for both prototypes and production parts.

Item SLA MJF SLS SLM Large‑Format FDM
Min. Wall Thickness 0.6 mm for unsupported walls, 0.4 mm for supported walls on both sides At least 1 mm thick; avoid overly thick walls From 0.7 mm (PA 12) to 2.0 mm (carbon‑filled polyamide) 0.8 mm 1.2 mm minimum functional wall; 2.0 mm recommended for large‑size structural parts
Layer Height 25 µm to 100 µm Around 80 µm 100‑120 microns 30‑50 μm 0.15 mm‑0.60 mm, adjustable by nozzle size
Max. Build Size 1400×700×500 mm 264×343×348 mm 380×280×380 mm 650×500×300 mm 3000 × 2000 × 1800 mm,
Dimension Tolerance ±0.2 mm (For >100 mm, apply 0.15%) ±0.2 mm (For >100 mm, apply 0.25%) ±0.3 mm (For >100 mm, apply 0.35%) ±0.2 mm (For >100 mm, apply 0.25%) ±0.3 mm (For >200 mm, apply 0.3%)
Standard Lead Time 4 business days 5 business days 6 business days 6 business days 5‑7 business days
Surface Finish (Ra) Normal: 3.2 μm 3.2‑6.3 μm 3.2‑6.3 μm 3.2‑6.3 μm 12.5‑25 μm as‑printed; 3.2‑6.3 μm after post‑processing & polishing
After polishing: 1.6 μm (No secondary processing for nylon) (Polishing / grinding available) (Polishing / grinding available)

Surface Finishing Options

The right surface finish can improve appearance, corrosion resistance, wear resistance and service life.

Multi‑Process Metal 3D Printing

We provide full‑spectrum multi‑process metal additive manufacturing solutions, covering SLM selective laser melting and mainstream metal printing technologies.
Our versatile metal printing capabilities support a wide range of metal alloys, including stainless steel, aluminum, titanium, and high‑strength nickel alloys. By integrating multiple metal printing processes, we flexibly balance high precision, complex internal structures, mechanical strength, surface quality, and production efficiency.
From high‑precision functional prototypes to low‑volume industrial metal parts, we deliver stable, high‑quality metal components for automotive, aerospace, medical, machinery, and consumer electronics industries.

Material Type Stainless Steel Stainless Steel Mold Steel Titanium Alloy Aluminum Alloy Aluminum Alloy Nickel‑base Superalloy
Printing Material 316L 17‑4PH 18Ni300 TC4 AlSi10Mg 6061 GH4169
Powder Properties
Grain Size 15‑53 μm 15‑53 μm 15‑53 μm 15‑53 μm 15‑53 μm 15‑53 μm 15‑53 μm
Powder Shape Spherical Spherical Spherical Spherical Spherical Spherical Spherical
Flowability 40 s 22 s 40 s 45 s 150 s 120 s 45 s
Apparent Density 3.9 g/cm³ 4.0 g/cm³ 4.3 g/cm³ 2.5 g/cm³ 1.45 g/cm³ 1.07 g/cm³ 4.4 g/cm³
As‑built Performance
Relative Density ≥99 % ≥99 % ≥99 % ≥99 % ≥99 % ≥98 % ≥99 %
Tensile Strength ≥560 MPa ≥1100 MPa ≥1090 MPa ≥600 MPa ≥330 MPa ≥280 MPa ≥980 MPa
Hardness 11‑12 HRC 13‑16 HRC 30‑36 HRC 30‑35 HRC 60‑75 HB 90‑95 HB 283 HB
Yield Strength ≥560 MPa ≥1050 MPa ≥1000 MPa ≥540 MPa ≥245 MPa ≥230 MPa ≥700 MPa
Elongation ≥25 % ≥15 % ≥10 % ≥5 % ≥6 % ≥8 % ≥13 %
Heat‑treated Performance
Tensile Strength ≥560 MPa ≥1250 MPa ≥1930 MPa ≥1150 MPa ≥310 MPa ≥290 MPa ≥1450 MPa
Yield Strength ≥400 MPa ≥1150 MPa ≥1890 MPa ≥1200 MPa ≥200 MPa ≥250 MPa ≥1000 MPa
Hardness 13‑15 HRC 32‑42 HRC 48‑52 HRC 35‑40 HRC 90‑120 HB 95‑120 HB 455 HB
Elongation ≥32 % ≥20 % ≥4 % ≥12 % ≥8 % ≥14 % ≥20 %
Elastic Modulus 180 GPa 200 GPa 160 GPa 100‑120 GPa 70 GPa 70 GPa 140‑180 GPa
Coefficient of Thermal Expansion ‑ 6.0 × 10⁻⁶ /°F 11.2 × 10⁻⁶ /℃ ‑ ‑ ‑ ‑
Poisson’s Ratio ‑ ‑ ‑ ‑ 0.25‑0.30 0.32‑0.36 ‑
Thermal Conductivity ‑ 17.2 W/(m·k)@100℃ 25‑30 W/(m·K) ‑ ‑ ‑ ‑
23 W/(m·k)@500℃
Electrical Resistivity ‑ 38.6 Microhm‑in ‑ ‑ ‑ ‑ ‑
Electrical Conductivity ‑ 1.4‑1.5 × 10⁶ S/m ‑ ‑ ‑ ‑ ‑
Melting Point 1450 ℃ 1500 ℃ 1350 ℃ 1700 ℃ 700 ℃ 700 ℃ 1300 ℃

Materials We Commonly Support

Material Grade Alloy Name Key Application Notes
AlSi10Mg Aluminum‑Silicon Alloy Light‑weight, high strength‑to‑weight ratio; ideal for automotive & aerospace prototypes
316L 316L Stainless Steel Excellent corrosion resistance; suitable for machinery, marine and medical parts
304L 304L Stainless Steel Good ductility, general‑purpose structural components
Ti6Al4V Titanium Alloy High strength‑to‑weight, biocompatible; for medical implant and aerospace parts
17‑4PH 17‑4PH Stainless Steel High‑hardness precipitation hardening steel; mechanical‑load‑bearing functional parts
Inconel 718 Nickel‑Based Superalloy High‑temperature resistance; for high‑heat aerospace & industrial equipment
CoCr Cobalt‑Chromium Alloy High‑wear‑resistant, biocompatible; medical & dental components

 

Industries We Serve

SLM 3D Printing Services

Get high-precision, fully dense metal parts with outstanding mechanical strength. Our industrial SLM selective laser melting service manufactures durable metal components for harsh working environments, supporting complex internal structures, lightweight lattice designs and high-performance end-use metal parts.

Tolerances as fine as ±0.2 mm.
ISO 9001:2015,5, IATF 16949:2016 certified
Lead time as fast as 1 day

Precision CNC Machining with Guaranteed Quality

Your success depends on reliable parts. Our CNC machining services provide precision machining with a 90% first-pass yield. You can get quality CNC machined parts for both prototypes and production runs.

Metal Owned Factories and Manufacturing Handwork

Trendy owns 10 in‑house production lines, offering complete one‑stop DPI process services including 3D printing, CNC, wire‑EDM, turn‑milling, mold making, spark erosion, polishing, manual assembly, injection molding, silk‑screen printing and packaging.
With in‑house spraying & assembly, we provide multi‑disciplinary fast supply. Our 3D printing validates ID appearance and MD structure. Cross‑process integration cuts your costs and accelerates project progress.

10 in‑house production lines for full‑chain manufacturing
One‑stop DPI service: 3D Printing, CNC Machining, Wire‑EDM, Turn‑Milling, Mold Fabrication, Spark Erosion, Polishing, Manual Assembly, Injection Molding, Silk‑Screen Printing, Packaging
In‑house spraying and assembly
3D printing for ID appearance validation & MD structural verification
Multi‑disciplinary process synergy to reduce costs & shorten lead‑time

Why choose US ?

Trendy is a trusted provider of CNC turning services, serving customers across a wide range of industries. Equipped with advanced CNC turning capabilities and a team of seasoned engineers, we deliver reliable solutions covering rapid prototyping all the way to high‑volume, production‑grade CNC‑turned components.

Advanced Machining Technology

Multi‑axis & 5‑axis CNC capability for both simple turned parts and complex 3D milled components.

Strict Quality Control

Full in‑house inspection ensures tight tolerance, smooth surface finish and stable consistency.

Professional Engineering Support

Free DFM review and technical consultation to reduce machining risks and improve manufacturability.

Fast & Reliable Delivery

Quick quotation, streamlined workflow, urgent prototype support and stable mass‑production supply.

Optimized Cost Performance

Smart process planning to reduce unnecessary cost while maintaining high quality.

One‑stop Manufacturing Service

Integrated machining + surface finishing (anodizing, sandblasting, plating, etc.) for assembly‑ready parts.

Resource

Not sure which material is right for your project?

Send us your drawings, sample photos or application details. We’ll help you evaluate the best material based on structure, process, finish, environment and target cost.

Related Products

Get a feasibility review for your large-format 3D printing project.

Large-format 3D printing is ideal for non-standard custom parts, prototypes, tooling, exhibition props, and repeated R&D testing.