This document summarizes information presented by Brian Matthews, CTO of Meltio, about the company's multi-metal additive manufacturing technology. Some key points: - Meltio has developed a multi-laser deposition head that can process wire and powder simultaneously or independently, allowing for multi-metal 3D printing. - Their technology integrates easily with existing CNC or robotic platforms and allows for printing of parts with different metals or creating new alloys on the fly. - They offer metal 3D printing solutions in the form of turnkey printers, CNC integrations, and robotic integrations to suit different requirements. - Meltio's process can deliver strong, affordable, and fully

1. Automotive Lightweight Materials USA 2022
Brian Matthews
CTO, Meltio
Thursday 31st March, 2022
Multi-Metal Additive
Manufacturing with Meltio

2. About
Our mission is to delight customers, partners and employees by
pioneering the development of affordable metal 3D printing
solutions
that are reliable, safe and easy to use, continually reinforcing our
status
as disruptors.

3. Last 18 months…
>70 Employees >125 Systems Sold >35 Partners for local sales,
integration, service and support

4. Metal additive manufacturing barriers for industrial adoption
Limited Part Size and
Part Properties
High Investment, Development and Running
Costs
Subpar User Experience and
Convenience

5. Multi-Laser Deposition Head
Meltio’s technology comes packaged in a compact 1.2kW deposition head, host of multiple lasers and capable of processing wire and powder
independently or simultaneously.
Integration Ready
Turn an existing CNC or robotic platform into an hybrid
manufacturing system with no inherentsize constraints.
Safe and Reliable
The bulk of the 3D printing process is built around
wire, the safest, cleanest and easiest to work with
metal feedstock.
Multi-metal 3D Printing
Print dual wire for hard-facing or anti-corrosion
applications, or wire and powder to create new
alloys on the fly.

6. Metal 3D Printing Solutions
A package that suits every requirement; turn-key metal 3D printer, CNC integration for hybrid manufacturing or
robotic integration for large components.
Meltio Engine
CNC Integration
from 130,400€
Meltio M450
3D Printer
from 123,400€
Meltio Engine
Robotic Integration
from 125,400€

7. Meltio M450 Laser Metal Deposition

8. Meltio Engine (CNC Hybrid) Laser Metal Deposition

11. Meltio Engine (Robot) Laser Metal Deposition

12. Meltio Engine (Robot) Laser Metal Deposition

13. Meltio 3D Printing Process
The only process able to deliver strong, affordable and fully dense metal parts within a few hours
1
Print
With steels, titanium, inconel, copper* and aluminum*
alloys
2
Post-process
With heat treatment, CNC machining, bead blasting,
polishing…
3
Cut
Remove the build plate using a band saw or wire EDM
*Under Development: expected to
be released in 2021.

14. Single and Dual Metal 3D Printing
Meltio recommends printing the bulk of the parts with metallic wire. If the desired build material is not available
in wire form, powder can be used.
Dual Wire
Combine different metal materials in a single part. The
wire switching process is quick, automatic and clean.
Single Wire
The bulk of the 3D printing process is built around
wire, the safest, cleanest and easiest to work with
metal feedstock.
Wire and Powder
Create new alloys on the fly, test functional
gradients and research metal matrix composites
(MMC).

15. Open Materials Platform
Stainless Steels,Wire & Powder
Fully supported: 316L (EN 1.4404), 308L (EN1.4316) and 304L
(EN 1.4307)
Titanium, Wire
Fully supported: Titanium Grade 5 (EN 3.7165)
Inconel, Wire & Powder
Fully supported: Inconel 718 and Inconel 625 (EN 2.4668)
Carbon Steels, Wire & Powder
Fully supported: SAE 4140 (EN 1.7225), and A-5.18:ER70S-6
(EN 1.5130)
Copper, Wire & Powder
Under Development: expected to be released by the end of
2021.
Aluminum, Wire
Under Development: expected to be released by the end of
2021.

16. From 0.3 to 1.2mm layer
heights
Under some conditions, Meltio’s
using wire outperforms those
based processes.
Consistent 99.998%
densification
Meltio’s WP-LMD produces fully
dense parts with superior
microstructure.
Post-process when
necessary
Meltio’s WP-LMD overthickness is
homogenous and for applications
printed in high-resolution only post-
treatment of critical areas is
necessary.
Excellent Mechanical Properties
Meltio’s compact heat affected zone process achieves exceptional mechanics, decreased
thermal stress and near isotropic properties, exceeding casting and forging material
properties.

17. Tested Mechanical Properties
Stainless Steel
316
Wrought
Properties
Cast
Properties
Meltio XY
Properties
Meltio XZ
Properties
Tensile Strength (MPa) 515 550 635 ± 13 650 ± 7
Yield Strength (MPa) 208 260 390 ± 30 380 ± 17
Elongation (%) 40 35 52 ± 3 46 ± 4
Inconel
718
Wrought
Properties
Cast
Properties
Meltio XY
Properties
Meltio XZ
Properties
Tensile Strength (MPa) 1241 802 1308 ± 10 1235 ± 11
Yield Strength (MPa) 1034 758 1128 ± 20 1040 ± 12
Elongation (%) 10 5 6.6 ± 2.1 8.5 ± 0.7
Titanium
64
Wrought
Properties
Cast
Properties
Meltio XY
Properties
Meltio XZ
Properties
Tensile Strength (MPa) 930 860 950 ± 5 -
Yield Strength (MPa) 860 758 882 ± 5 -
Elongation (%) >10% >8% 12 ± 0.5 -

18. It can also be used for small
and medium sized parts
Can achieve very smooth
surface finishes
Only requires 1.5mm extra
stock
Meltio’s Wire Deposition Process

19. Rubix Cube Sample Part
Number of Material Changes: 120
Materials: Mild Steel SG2 + Stainless steel 316L
Size: 130 x 50 x 220 mm
Weight: 1.7 kg part
Print Time: 5 h 20’
Print Cost in dual material: € 27.11
Purpose:
Demonstrator part to test the reliability of dual material
printing in the meltio ecosystem.
Meltio Dural Wire Printing

20. Gas Turbine Fan Blade
Number of Material Changes: 1
Materials: Inconel 718 with part with ER-70S Mild Steel
support layer
Size: 35 x 75 x 135mm
Weight: 1.11 kg part
Support Weight: 0.1kg
Print Time: 3 h 10’
Print Cost in dual material: € 76,85
Benefits of dual Wire printing:
- Easier to separate part from buildplate
- No additional setup time for dual material print.
Meltio Dural Wire Printing

21. Seamless integration of encoder in shaft for rotation and position measurement.
- Part was printed in two materials.
- The shaft is made from stainless steel 316L (non-magnetic)
- The inserts are printed from mild steel. (magnetic)
- A hall effect sensor is used to detect the position and speed of the shaft.
- Because the mild steel inserts are completely covered by the stainless steel
shaft, corrosion performance of the shaft is preserved.
Hall Effect Sensor
Magnetic Sections
A test section was produced on the Meltio M450
Mild Steel Insert
Stainless steel Jacket
Example Integrated Functionality

22. Hybrid
Manufacturing
Near Net Shape
Manufacturing
Repair and
Feature Addition
Short-runs
Mass
Manufacturing
RESEARCH PROTOTYPING MOLDS &
TOOLING
MANUFACTURING REPAIRS&
END OF LIFE
One-offs

23. Engine Mount - Titanium
Size: 75x24x235mm
Weight: 0.52kg
Time: 3h 50’
Cost: 80.08€
Mold Core – Stainless Steel
Size: 132x132x144mm
Weight: 6.59kg
Time: 23h 25’
Cost: 76,37€
Cooled Nozzle – Stainless Steel
Size: 78x78x120mm
Weight: 0.79kg
Time: 3h 3’
Cost: 17.92€
Watch Bezel – Stainless Steel
Size: 45x53x11mm (per piece)
Weight: 0.11kg (both)
Time: 1h 28’ (both)
Cost: 13.44€ (both)
Turbine Blade - Inconel
Size: 75x35x135mm
Weight: 1.11kg
Time: 3h
Cost: 72,99€
Knee Implant - Titanium
Size: 99x77x51mm
Weight: 0.41kg
Time: 2h 9’
Cost: 38,44€

24. Recent Automotive Applications

25. Connecting Rod (SS316L) Spline Shaft (SS316L)
Recent Automotive Applications

26. Recent Automotive Applications
Wiper Gearbox Housing
(SS316L)
Automotive Trim Tool (SS316L and Tool Steel)

27. Mold Core
SS316L
Recent Automotive Applications

28. Thank You!
Brian Matthews
brian.matthews@meltio3d.com