Metal 3D Printing (DMLS) Services
Professional DMLS and SLM 3D printing services for industrial applications
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Certifications
ISO 9001:2015 | ISO 13485:2016 | IATF16949

- Lead times from 5 days
- Metal 3D printing service
- From 1 to 10,000+ parts
- ISO and IATF certified
Get a quote / Get in touch
Please use the following formats:
.stl, .obj, .wrl, .step (.stp), .iges (.igs), .3mf, .dxf and .zip
100mb max file size (per file)
If you have a file type not listed, please contact us to discuss first.
Home Office: 116 Cardigan Road, Office M2.
Headingley, Leeds UK, LS6 3BJ
Company Number: 12704810
VAT Number: GB393458263
Factory: Building A, Hongfa Industrial District
Houda Road, Daling Shan, Dongguan,
Guangdong, China
Our DMLS 3D Printing Services
Direct Metal Laser Sintering or DMLS is an industrial metal 3D printing technology. It is a powder bed fusion process similar to SLS, which builds parts from a range of metal materials one layer at a time by sintering metal powders together.
DMLS 3D printing is a process capable of building highly complex shapes which would be near impossible to make via other methods. This technology promises to have a massive range of applications as it improves and becomes better understood.
Our Metal 3D Printing Capabilities
Maximum Build Size | 280 x 280 x 280 mm (11″ x 11″ x 11″) |
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Materials | Aluminium, Stainless Steel, Copper |
Minimum Wall Thickness | 1 mm |
Lead Time | 5 days |
Resolution | ± 0.3mm |
Prototyping Applications | Complex-shaped functional prototypes |
End-Use Applications | Low volume functional end-use parts |







Metal 3D Printing Materials
Aluminium Alloy
Aluminum metal 3D printing is often used in applications with sensitive weight requirements, making them ideal for the aerospace, aviation, and automotive industries.

Copper Alloy
HLH now offers copper 3D printing services. CuCrZr is a copper-based metal powder for metal 3D printing with high electrical conductivity. It has exceptional thermal and mechanical properties.

Bronze
Bronze is an affordable metal 3D printing material option. It’s a copper-based alloy that resists corrosion and metal fatigue better and conducts heat and electricity better than most steels. Bronze is commonly used for sculptures, musical instruments, medals and in other industrial applications.

Stainless Steel
At HLH, we can 3D print in different grades of stainless steel. Stainless steel is strong and highly resistant to corrosion and rust, making it ideal for parts that are exposed to different elements for long periods and do not easily break.

Titanium Alloy
Titanium alloys have high specific strength, good high temperature mechanical properties and excellent corrosion resistance. 3D printing with titanium is very precise, making it a popular material choice in the aerospace and automotive industries.
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Nickel-base Superalloy
With SLM and DMLS, you can 3D print difficult-to-machine metals like Nickel-base superalloy. Nickel-base superalloys are corrosion resistant high-temperature alloys that have exceptional strength. It is typically used in aerospace, power generation, and automotive high temperature applications.

Typical DMLS Finishing Options
Applicable Materials | Colour | Description | |
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Sanding | All | – | Sanding DMLS printed parts is a good way of smoothing edges, minimizing visible layers, and getting rid of any leftover support marks. |
Spray Painting | All | Black, Pantone/RAL colours | Spray painting is a quick way to colour DMLS parts. It can also reach areas that cannot be reached with a brush. |
Plating | All | – | Polishing is often used to enhance the appearance of an item, create a reflective surface or prevent corrosion. |
Post-Process Machining
DMLS and SLM can produce accurate parts to 0.1mm. Achieve even tighter tolerances with our in-house cnc machining services while benefitting from the design freedom of additive manufacturing.
- 3, 4 and 5 axis
- CNC turning
- Wire EDM
- CNC tapping


Design For Metal 3D Printing
To achieve better part quality and dimensional accuracy, it is important that your 3D model closely follows a set of geometric recommendations. Learn actionable design tips for DMLS and SLM.
About The Process
Direct Metal Laser Sintering (DMLS) is a metal 3D printing technology that uses lasers to fuse powdered metals into functional prototypes and low-volume end-use parts.
Advantages of Metal 3D Printing
Efficiency
Metal printing defies traditional Design-For-Manufacturing guidelines, so designs that would typically be made in assemblies can be made in a single piece.
Complex Geometries
DMLS and SLM produces parts that cannot be made using traditional manufacturing techniques.
Rapid Turnaround
Metal 3D printed parts do not require tooling which reduces the manufacturing lead time from weeks to days, allowing for faster innovation and speed to market.
Production Parts
SLM and DMLS utilizes powdered metals with strong mechanical and dynamic properties, making it perfect for end-use parts.
FAQS
Direct Metal Laser Sintering, or DMLS, is an additive manufacturing technology that produces functional metal prototypes and low-volume production parts by melting and fusing layers of metallic powder together through a high-power laser beam.
Ultimately, Direct Metal Laser Sintering (DMLS) and Selective Laser Melting (SLM), often used interchangeably, are very similar additive manufacturing processes. They both use laser energy to add metal powder together rapidly. The main difference is that SLM heats the metal powder until it fully melts into a liquid, whereas DMLS just sinters heat particles enough so that their surfaces weld together.
Yes. At HLH, we offer both DMLS and SLM 3D printing services. We are able to produce complex-shaped and functional metal alloys or pure metal prototypes and low-volume end-use parts.