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Introduction to DMLS 3D Printing

What is DMLS 3D printing?
What is DMLS 3D printing?
DMLS uses a fiber laser system that draws onto a surface of atomized metal powder, welding the powder into fully dense metal parts.
Design of DMLS 3D printing
Design of DMLS 3D printing
Design guidelines applicable for DMLS 3D printing processes. Design guidelines for specific processes. Design guidelines for specific parts.

Our DMLS 3D Printing Service

Direct Metal Laser Sintering or DMLS is an industrial 3D printing technology which builds parts from a range of metal materials one layer at a time by sintering metal powders together. This process is capable of building highly complex shapes which would be near impossible to make via other methods.

The difference between DMLS (Direct Metal Laser Sintering) and SLS (Selective Laser Sintering) is the type of materials that can be used to print the required parts.

Our <span style="color:#DA251D">DMLS</span> 3D Printing Service

PRODUCTION CAPACITY

Maximum build size:

280 × 280 × 280 mm

Standard lead time:

6 business days

Dimensional accuracy:

± 0.5% with a lower limit of ± 0.15 mm (± 0.006")

Layer height:

25-100 um

Advantages of DMLS

Manufacture of complex shapes or internal characteristics
It can be sintered in small area and foil products
Simultaneous production of multiple parts
Printing of multiple metal materials together

Available Materials For DMLS

Material
Material Reference
Colors
Specifications / Type
Metal
Stainless steel 316L
Metallic color
280*280*280mm
Metal
Titanium alloy
Metallic color
280*280*280mm
Metal
Aluminum alloy
Metallic color
280*280*280mm
Metal
Die steel
Metallic color
280*280*280mm
Metal
Nickel base superalloy(GH4169)
Metallic color
280*280*280mm

Post Processing For DMLS

Deburr
Deburr
Painting
Painting
Plate
Plate
Design Guidelines For DMLS
TIPS & TRICKS
Reducing support demand will reduce printing costs
Grid structure can reduce the weight of components
Metal 3D printing parts have excellent mechanical properties
Parts with large solid section can be printed with skin and core instead
TOLERANCES
± 0.3 mm is standard.
WALLS
DMLS can manage very thin walls but HLH do not recommend anything
under 0.8 – 1mm. Size of single piece can not be less than 10*10*10mm.
WALLS
MATING PARTS
Minimum 0.5mm gap between axel and bore or other moving parts.
MATING PARTS
HOLES & SLOTS
We recommend a minimum of 0.5mm but the larger the better especially as wall thickness or depth increases.
HOLES & SLOTS
PINS & EMBOSSED FEATURES
Pins ≥ 0.8mm but even then risk breaking. Embossed features ≥ 0.3mm.
PINS & EMBOSSED FEATURES
TEXT & ENGRAVED DETAILS
Are at risk of closing up if not designed with 0.5mm > minimum height.
TEXT & ENGRAVED DETAILS