Journée Technologique Fabrication additiveMulti-matériaux et hybridation des procédés

ENSIACET - 15 mai 2019

Ajouts de formes, de fonctions et maintenance/réparation

à l’aide de la Fab Additive par projection DED/LMD

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Présenté par Alain TOUFINEPrésident - Dir Tech. & Strat. Indus.

alain.toufine@optalm.fr+33 6 16 69 71 87

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Presentation plan➢ Brief company overview

➢ Innovation

➢ Process hybridization▪ DED with thin sheet metal / welding

▪ DED with casting

➢ Multi material developments

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Delivery of finished products

Courtesy of STELIA

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History of the company

In the scope of the Occitanie Regional Innovation Strategy for Materials / Process dedicated to “high tech” industries and aeronautic.

Man-power : 5 persons operational team expert in➢ Project management, Mechanical / Thermal / materials engineering and Architectures,

➢ AM programming & machining, Environmental test follow’s up.

- Brief company overview -

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2015 2016 2017 2018

OPT’ALMcreation

Start Up1st studies

Fundraising & DED machine

purchase

1st projects & Recruitments

march jully october march

2019 …

Structuring projects

Pre-industrializations

1st works to get EN9100 agreement

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Our production means : BeAM MODULO 400, optical microscope

➢ Industrial & secure HSE environments

▪ Controlled ambience with low O2 and H20 rates,

▪ 2 nozzles deposition systems, laser power source 2 x 1 kW,

▪ 5 continuous axis and a deposition area of 650 mm x 500 mm x 500 mm.

➢ In partnership with

Our customers and marckets

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- Brief company overview -

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OPT’ALM Innovations➢ Sandwich structures

▪ Integration of mechanical / thermal functions, Mono or Multi materials,

▪ 20 to 100 times faster / conventional modes,

▪ Performance 3 to 20 times higher / existing.

➢ Rod and transmission shaft under multi mechanical solicitations

- Innovation -

5

+ +Before

Several assemblies

of components

Now

Only 1

operation

Better quality reproductibility

Elliptical Isogrid double skins Isogrid single skins During AM machining

Patent F 15/00902

Patents 14/02904EP 15 2000 033.7

Un+1 = Un + 1

Un n = 0, … ∞

U0 = 1

Process hybridization : DED with thin sheet metal / welding

➢ Maintenance and Repair of mechanical structures : New modes of repairs (alternative),

➢ 1st results without thermal treatment

▪ Young modulus = 107 MPa

▪ Elongation = 10%

▪ Yield strength = 880 MPa

▪ Ultimate strength = 1 GPa

➢ Results with thermal treatments

▪ Elongation (Tth, HIP) = 10% , 15%

▪ Yield strength (Tth, HIP) = 930 MPa , 830 MPa

▪ Ultimate strength (Tth, HIP) = 1 GPa, 920 MPa

- The Process hybridization & Multi materials -

Courtesy of ATR

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Substrate thickness 0,8 mm

Pore rate2 ppm

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Process hybridization : DED with casting

➢ Product customization & prototyping : New way to check engineering performances

▪ Development phase reduced,

▪ Standardization + customization,

▪ Mix material Nickel alloys on Inox 316 L,

▪ Nickel alloys massive areas on tube (interior, exterior)

- The Process hybridization & Multi materials -

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Inco 718 / 625 on Inox 316 L tube

Courtesy of LIEBHERR Aerospace

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Multi material developments : DED Inox 316 L / Nickel Alloy 718

➢ From 100 % of Inco 718 to 100 % of INOX 316 L

▪ Research samples (ENSAM PIMM / ELEMCA),

▪ µtomography shows low pores’ rate and the mix material areas,

▪ TAA similar to welding, thin and continuous dendritique microstructure.

- The Process hybridization & Multi materials -

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resolution of 40 µm

Courtesy of ELEMCA

Substrate / 1st layer interface 2sd / 3rd layer interface

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Multi material developments : DED on honeycomb structures

➢ 100 % in material M1 and from 100 % of Inco 718 to 100 % of INOX 316 L

▪ Research samples (ENSAM PIMM / ELEMCA),

- The Process hybridization & Multi materials -

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resolution of 40 µm, pore of 0,1 mm

Courtesy of ELEMCA

M1 material only

Multi material

resolution of 100 µm

Graphe along height

resolution of 40 µmPPT_OAM18_73_18_conf_ENSIACET_mai-2019_ed00

From Design to industrialization✓ 3D Direct Manufacturing✓ Addition of features mono / multi material✓ Repair of components

Delivery of finished products

Courtesy of STELIA

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alain.toufine@optalm.fr loic.mesmin@optalm.fr

+33 6 16 69 71 87 +33 6 30 26 82 15

OPTALM - Saint Caprais, 31330 GRENADE / Garonne www.optalm.fr

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