MT 3D is a company located in Kuurne, Belgium that provides consultancy, engineering, and production services related to metal 3D printing. Their goal is to help customers understand the different metal 3D printing technologies and build long-term relationships to provide engineering and production services. They have expertise in laser beam melting, electron beam melting, and laser/electron beam freeform manufacturing of materials like titanium, stainless steel, and aluminum. MT 3D has capabilities like part sizes up to 250x250x400mm with accuracy of +/-0.1% and surface roughness as low as Ra 0.05um. They see potential applications in areas like flow optimization, miniaturization, and mass reduction.

1. MT 3D
Your Partner in Metal 3D Printing
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2. Company Info
Location:
Pieter verhaeghestraat 12
BE - 8520 Kuurne
Services:
- Consultancy:
- Engineering:
- Production
Goal: Help potential customers to understand the different technologies and possiblities.
Hereby creating a long term relationship to deliver engineering and production services in the future.
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3. Technology
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LBM EBM LFM/EFM

4. Technology
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5. Technology
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LBM
Binder Direct
SLM
DMLS
DMP
….
Sintering

6. Technology
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ADVANATGES DRAWBACKS
LBM
-Very complex internal cavities
-Highest precision
-lowest roughness
-High energy  Thermal Stresses
-Slowest Technology
EBM
-Kenic energy + Preheating  lower
Thermal Stresses
-Faster than LBM
-Complex internal cavities not possible
-Rougher texture and less precise than LBM
LFM/EFM
-Highest speed
-Large parts possible with smaller
hardware
-different materials can be used in the
build direction
-Rougher texture and less precise than both
LBM and EBM
-Lack of powder bed limits geometrical
complexity
-No ability to influence material properties
through the layers

7. Terminology
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Technology Principle Companies /trade -names
Laser Beam Melting
(LBM)
Heat transferring laser MELTS Metal
powder in powder bed
SLM solutions (SLM); Renishaw (MAM); 3D
Systems (DMP); concept laser (Laser Cusing);
eos (DMLS)
Electron Beam Melting
(EBM)
Electron beam MELTS metal powder
in powder bed
Arcam (EBM)
Laser Beam Freefrom
Manufacturing (LFM)
Metal powder is sprayed through a
nozzle and melted with a laser beam
Optomec (LENS); Aeromet (lasform); POM
(DMD); AMBIT ; Efesto (LMD); RMP (LFMT);
H&R Technology (PMD MDT)
Electron Beam
Freefrom
Manufacturing (EFM)
Metal powder is sprayed through a
nozzle and melted with a electron
beam
Sciaky (EBAM) ; Efesto (EBAM)

8. Terminology
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Technology Principle Companies /trade -names
Laser Beam Sintering Heat transferring laser SINTERS Metal
powder in powder bed; subsidiary
pressurized oven treatment to densify
material
Early EOS technology; Trumph;
Tree Dimentional
Printing (3DP)
Binding metal powder by adhesives,
subsidiary oven proces to 1) burn out
binder and impregnate with bronz or
copper or 2) burn out binder and do
pressurized treatment to densify part
Exone (BJ) Digital Metal Hoganas (3DP)
LBM-CNC Combining LBM with CNC milling Matsura

9. Materials
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MATERIALS TYPES
Titanium Grade 1 (cp1/2 high purity)
Grade 5 (with or without HIP)
Grade 23 (with or without HIP)
Stainless Steel 316L
17-4
15-5
Aluminium AlMg10Si
Al12Si
AlMgSC
Tool Steel X3NiCoMoTi 18-9-5 (maraging)
Hatelloy X NiCr19Fe19NbMo3
Inconel 718
625
600
CoCr CoCrMo (ASTM F75)
CoCrWMo (ISO22674)
Tungsten Pure >99,9%
Tantalum Pure >99,9%

10. Materials
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316L Ti6Al4V Grade 5
UTS
Yield
Elongation
Young’s modulus
Hardness
630-700 MPa
500-590 MPa
45-50 %
170 Gpa
30 J/cm²
1190 Mpa
1100 Mpa
8%
112 Gpa
37 HRC
Thermal expansion (0-100°C)
Thermal conductivity (at 20°C)
Specific heat capacity
Metling point
16.4 µm/m.°C
15 W/m.K
500 J/kg.K
1375-1400 °C
8.6 µm/m.°C
6.7 W/m.K
580 J/kg.K
1660°C

11. Capabilities
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PROPERTY CAPABILITIES
Density 99,5%-100%
Depending on Criteria of the application
Dimensions 250-250-400 mm
(500-800-500 mm)
Part Accuracy +/-0,1% (min +/-50µm)
Feature Resolution 0,5 mm (min 0,1 mm wall/ min 0,25 mm channel diameter)
Surface Roughness In General Ra 10-15 µm
After Sandblasting Ra 2-4 µm
With other post techniques up to Ra 0,05 µm
Post-Processing Milling turning, EDM, grinding welding, plating anodizing,…

12. Potential
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Driver Application
Monolithic Construction Reducing the quantity of components
e.g. monolithic burner, 3D dimensional position flexure
Flow Optimization e.g. heat exchangers, laminar manifolds
e.g. conformal cooling applications
Miniaturization Very complex high functional parts can fit in very small area
e.g. internal cavities with fin structures on the inside of 0,2 mm
Add Functionality Making the geometry more complex to fulfill an additional
function will in most cases reduce material and thus cost
Mass reduction Light weight honey comb/lattice structures to reduce weight
and optimize strength to weight ratio
First Proto of a MiM-serial Production
Very small complex products
e.g. Aluminum Housing / Case
e.g. fixture/bracket

13. Design Rules
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1) Avoid Downfacings

14. Design Rules
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2) Orientation: Accuracy and Roughness

15. Design Rules
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3) Orientation: Accuracy and Roughness
- X/Y accuracy up to +/-50µm
- Z-direction accuracy up to +/-100µm
- X-Z and Y-Z surfaces have roughness Ra 4-5µm
- X-Y down facing surfaces have roughness Ra 6-7µm

16. Design Rules
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4) Use material friendly design techniques

17. Design Rules
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5) Organic Designs:
- Organic designs are more easy to 3D print then designs with straight edges.
- Never work with 90°angles: tension concentrations causing cracks.

18. Design Rules
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6) Design Checks:
- Down facing surfaces in internal cavities > 45°?
- Channel diameter < Ø 8 mm?
- Sealed cavities?
- Are supports accessible for removal

19. MT 3D
Pieter Verhaeghestraat 12
8520, Kuurne
Ir. Thomas Bossuyt
T +32 (0)56 37 02 60
M +32 (0)479 55 19 13
www.metaltechnics3D.com
Thomas.Bossuyt@metaltechnics3D.com
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