Slide ✓ Complex geometries
✓ Very large print size
✓ Hypercompetitive pricing
✓ Professional DFM when needed
GET A QUOTE SLM DMLS Direct Metal Laser Sintering Selective Laser Melting

Our unique network of metal 3D printing includes some of the most advanced 3D printer manufacturers and specialized service providers. Major clients include leading global corporations in various sectors, such as aerospace, telecom, automobile, electric vehicle, FMCG, etc.

 

We also have specialization in designing printed casting and injection moulding tool / insert with advanced internal cooling pipelines.

DMLS / SLM capability overview

DMLS SLM
Maximum build size (L x W x H) 425 x 425 x 420 mm
600 x 600 x 600 mm
400 x 400 x 1500 mm
600 x 1200 x 1500 mm*
Standard lead time
10 – 20 business days
For large volume, special dispatch schedule can be arranged
10 – 20 business days
For large volume, special dispatch schedule can be arranged
Dimensional accuracy
<10mm: ± 0.2% with a lower limit of ± 0.2 mm
>10mm: ± 2%
<10mm: ± 0.2% with a lower limit of ± 0.2 mm
>10mm: ± 2%
Minimal wall thickness
0.4mm (unsupported walls)
0.5mm (supported walls)
0.4mm (unsupported walls)
0.5mm (supported walls)
Minimum hole diameter 1.5mm 1.5mm
Layer height 50 μm 50 μm

*Due to limited number of machines, part at this dimension would be put into a waiting list. For very large parts, please check our LSF and WAAM service

Slide Superalloy aircraft engine frame Slide Complex pipeline module for aircraft Slide Automobile steering knuckle Slide Satellite stabilization unit stainless steel Slide Cobalt chrome denture Slide Automobile rocker arm Slide Runner mold with complex cooling pipes Slide Flexibile titanium structure Slide Aluminium table leg Slide Bronze art

When to use DMLS / SLM

  • Functional, end-use parts
  • Prototyping in production grade materials
  • Low volume production (Qty < 250)
  • Highly complex geometry which is impossible to generate through CNC machining 
  • Lattice structure metal part for weight reduction
  • Specific requirement such as high temperature performance, corrosion resistant, etc.

 

For high volume production of highly complex geometry (not possible by MIM or die casting), investment casting with 3D printed pattern will be more economical.

Available materials for DMLS / SLM

Inodus offers the most comprehensive selection of materials.  If your required material is not in the list, we will try our best to source it for you. If you are not sure which material is best for your application, our design engineers are here to help.

Types DMLS SLM Application considerations
Aluminium alloy Light weight, good mechanical, thermal and electrical conductivity
AlSi10Mg Widely used aluminium alloy for metal printing
AlSi7Mg Slightly less susceptibility to corrosion after low-temp heat treatment
Stainless steel High strength, corrosion resistant
304 Lowest cost corrosion resistant option, resistant to oxidation
316 High strength ductility and excellent corrosion resistance
316L Lower carbon content, good for welding. Common in Jewellery and watch industry.
321 Excellent choice in elevated temperature environments up to 900℃. Not recommended for welding.
420 Martensitic and magnetic, good corrosion resistance with increased strength and hardness.
15-5PH Martensitic and magnetic, increased toughness and better corrosion resistance than 17-4PH. Used in aerospace industry for fasteners and structural components
17-4PH Martensitic and magnetic, predecessor of 15-5
Titanium alloy Light weight, high tensile strength and toughness, excellent corrosion resistance and bio-compatibility
Pure titanium Corrosion resistance to acid, salt water and blood.
Titanium TC4 (Ti-6Al-4V) Most popular, significantly stronger than pure titanium, heat treatable
Titanium TC4 DT
(based on Ti-6AI-4V ELI)
Medium strength, developed specifically for aircraft frame and joining parts. Higher tensile strength and fracture toughness than TC4, weldable
Titanium TA15
(Ti–6Al–2Zr–1Mo–1V)
Enhanced mechanical property with ultrafine crystallites
Superalloy High temperature performance, resistance to thermal creep deformation
Inconel 718 High strength, 2x stronger than Inconel 625
Inconel 625 Medium strength, but better general corrosion resistance
Hastelloy X Good oxidation resistance, high-temperature strength and exceptional stress-corrosion resistance, for use in highly aggressive chemical environments at elevated temperatures
GH3536 (Hastelloy X similar) Manufacture of aero-engine combustion chamber components and other high-temperature parts, 900 ℃ long-term use
Copper alloy Excellent corrosion resistance, highest thermal conductivity
Pure copper Low in hardness, extremely ductile and highly malleable
CuCrZr High strength, high thermal and electrical conductivity
CuSn10 High strength and springiness at an adequate conductivity, can be soldered, with good sliding properties
Cobalt chrome alloy Resistant to corrosion and compatible with dental ceramic
CoCrMo Excellent mechanical properties and elevated temperature performance. Used in implants, turbomachinery, oil and gas industry.
CoCrMoW Common in prosthetics dental structures, avoiding bimetallism and the corrosive effect in contact with saliva.
CoCrW Better anti-corrosion properties than CoCrMo alloy for dental application
Tool steel Sophisticated cooling pipes can be printed compared to traditionally CNC-made tools and inserts, improve productivity and quality of cast and molded parts
H13 High pressure die casting tool / insert
MS1 Plastic injection moulding tool / insert (close to H13)
CX Plastic injection moulding tool / insert (close to H136)
Maraging steel
18Ni300 Ultra-high strength, good machinability
Tungsten alloy
W-25 (Tungsten Rhenium WRe) Ideal for high temperature structural components. Seen in joining, medical, aerospace, furnace, and heat treat industries.

Raw material cost

Powder analysis and material traceability will be performed to meet your production requirements. The following table will help you understand the rough cost of each type of material. Note that powder cost is only one part of the total cost.

Material type (powder form) Typical price (from our supplier)
Aluminium alloy £50/kg
Stainless steel £35/kg
Titanium alloy £190/kg
Superalloy £120/kg
Copper alloy £230/kg
Cobalt chrome alloy £80/kg
Tool steel £35/kg
Maraging steel £35/kg
Tungsten alloy £350/kg

Post-processing service for DMLS / SLM

Service
Heat treatment
(included by default, depending on materials)
Stress relief
Hot isostatic pressing (HIP)
Solution annealing
Aging
Post-process machining
3- and 5- axis CNC machining
Turning
Wire EDM
Tapping
Surface treatment
(depending on materials and geometry)
Bead blasting
Anodizing
Electropolishing
Fluid jet polishing
Plating
Black oxide
Quality inspections and reports
(additional cost and lead time apply)
CMM
X-ray

Facility Audit

We understand that sometimes your company will need to perform an audit or a third-party QC firm to approve the project. We are highly experienced in both and can make arrangements if you decide to visit the production site.

Frequently asked questions

What’s the difference between DMLS and SLM?

DMLS and SLM processes are functionally the same. Powdered metals are used and lasers fuse the metal particles.

The difference between these two processes is the temperature used to fuse the metal powder. SLM heats the metal powder until it fully melts into a liquid. DMLS does not melt the metal powder, so less energy is needed. The main reason why two names exist are due to patents, licenses and marketing.

What’s the finish looks like on DMLS/SLM?

Standard DMLS/SLM parts will have a finish similar of a sand casting. Additional CNC machining can be used to add more features such as tapped holes.

What happens to the thin-walled part?

Walls below 1mm must have a wall height-to-thickness ratio of less than 40:1 or the structure may fall apart. Thin walls are wasteful and inefficient, best to create honeycomb or lattice structure internally to reduce cost.

What’s the different between Inconel and Hastelloy?

Inconel® materials belong to a family of nickel/chromium alloys that are non-magnetic and take corrosion resistance to elevated temperatures. The Hastelloy® family of nickel/chromium/molybdenum alloys are ideal for use in highly aggressive chemical environments at elevated temperatures.

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