PVD Coatings and Nitriding Technology.

1. wHEFGR□UPE The surface engineering group
HEF Presentation
HEF Presentation - Matthieu LARCHER - 25/03/2019 CONFIDENTIAL GREEN WWW.hef,fr

2. 2 CONFIDENTIAL GREEN
Our world footprint
HEFGroupeFundamentals
HEF Presentation – Matthieu LARCHER – 25/03/2019
o Headquarters in France
o Capital owned by the
employees
o 3000 employees
o 250 M€ sales
o Presence in 30+
countries
o 4 research centers :
• France
• Germany
• India
• Canada
o 60 researches in France

3. 3 CONFIDENTIAL GREEN
Multi-industry presence
HEFGroupeFundamentals
HEF Presentation – Matthieu LARCHER – 25/03/2019
Automotive
▪ Engine
▪ Utilities
▪ Braking systems
Aeronautic
▪ Engine
▪ Utilities
▪ Braking systems
Construction
▪ Attachment
▪ Front frame
▪ Undercarriage
Others application
▪ Medical devices
▪ Energy (wind turbines…)
▪ Oil & gas

4. 4 CONFIDENTIAL GREEN
Multi-skilled expertise
HEFGroupeFundamentals
HEF Presentation – Matthieu LARCHER – 25/03/2019
Tribology
Technical powders
PVD / CVD thin filmsThermochemistry &
diffusion layer
Bushings & friction
components

5. 5 CONFIDENTIAL GREEN
The R&D lab
The commercial unit
The jobbing network
3 entities within the group
HEFGroupeFundamentals
HEF Presentation – Matthieu LARCHER – 25/03/2019

6. CONFIDENTIAL GREEN
The R&D lab
HEF Presentation – Matthieu LARCHER – 25/03/2019

7. 7 CONFIDENTIAL GREEN
IREIS: Tribology R&D lab
IREIS:TheR&DLab
HEF Presentation – Matthieu LARCHER – 25/03/2019
TRL
1
TRL
9
TRL
3
TRL
2
TRL
4
TRL
6
TRL
5
TRL
7
TRL
8
Lab scale Pilot scale Full scale
Representativeness
Cost
IREIS studies range from basic theory to prototype expertise in
representative conditions.

8. CONFIDENTIAL GREEN
The commercial
unit
HEF Presentation – Matthieu LARCHER – 25/03/2019

9. 9 CONFIDENTIAL GREEN
Consumables
Equipements
Friction components
HEF Durferrit: Sales & Technical
support
HEFDurferrit:Thecommercialunit
HEF Presentation – Matthieu LARCHER – 25/03/2019

10. CONFIDENTIAL GREEN
The jobbing
network
HEF Presentation – Matthieu LARCHER – 25/03/2019

11. 11 CONFIDENTIAL GREEN
TS: A global network
TS:ThejobbingNetwork
HEF Presentation – Matthieu LARCHER – 25/03/2019
EU : 26 unitsNA : 14 units
SA : 4 units Asia : 21 units

12. CONFIDENTIAL BLUE
CLIN® treatments
ARCOR® - TENIFER® -
QPQ®
HEF Presentation – Matthieu LARCHER – 25/03/2019

13. 13 CONFIDENTIAL GREEN
CLIN: What is it?
CLIN®treatments
HEF Presentation – Matthieu LARCHER – 25/03/2019
• ARCOR ® : ARCOR V, ARCOR C,
ARCOR L, ARCOR DT, ARCOR N,
ARCOR CS,…
• TENIFER ® : TF1, QP, QPQ,
MELONITE, TUFFTRIDE,...
CLIN : Controlled Liquid Ionic Nitrocarburizing
CLIN treatments are thermochemical Nitrocarburizing and
Oxynitrocarburizing treatments which enrich the surface of
ferrous materials with Nitrogen and a small amount of Carbon
both present in the salt
HEF group’s
patented CLIN
processes

14. 15 CONFIDENTIAL GREEN
CLIN: is it useful?
HEF Presentation – Matthieu LARCHER – 25/03/2019
✓ Excellent wear resistance
✓ Excellent friction properties
✓ Excellent corrosion protection
✓ Excellent heat resistance
✓ Good fatigue resistance
✓ Cosmetic black surface
CLIN®treatments

15. 16 CONFIDENTIAL GREEN
CLIN: How is it working?
Preparation
step
Preheating
Nitrocarburizing
step
Extra step
(Oxidizing)
Water cascade
washing
HEF Presentation – Matthieu LARCHER – 25/03/2019
CLIN®treatments

16. 17 CONFIDENTIAL GREEN
CLIN: How is it working?
HEF Presentation – Matthieu LARCHER – 25/03/2019
CLIN®treatments
- Provision of N + C from
appropriate
sources
Ferrous
metal
Nitrocarburizing environment - ∆T
N
- Diffusion of N + C
formation of a diffusion layer
- Chemical reactions form FexNy
and C-enriched ferrous metal
formation of a compound layer
N
N
N
C
C
Cyanate (CNO) = source of N and C
Liquid medium

17. 18 CONFIDENTIAL GREEN
CLIN: How is it working?
HEF Presentation – Matthieu LARCHER – 25/03/2019
CLIN®treatments
20 µm
Diffusion Zone
200 µm (0.008“)
20 µm (0.0008“) Compound Layer
SAE 4140 H&T
The Compound Layer (CL) is
essentially  and g’ iron nitrides +
special nitrides (in case of alloyed
steels) + some iron oxides
Diffusion Zone: The area below the
compound layer where Nitrogen
diffuses into the iron lattice to form
a solid solution.
O = Fe
•= possible
N positions

18. 19 CONFIDENTIAL GREEN
CLIN: also vertically integrated
HEF Presentation – Matthieu LARCHER – 25/03/2019
CLIN®treatments
Consumables
(for nitriding processes)
Equipement
(fabrication of the nitriding line)
Service
(in the jobbing network TECHNIQUES
SURFACES. Example TS Thailand)

19. CONFIDENTIAL BLUE
PVD Coatings
CERTESS®
HEF Presentation – Matthieu LARCHER – 25/03/2019

20. 21 CONFIDENTIAL GREEN
PVD Coatings: What are they?
PVDCoatings
HEF Presentation – Matthieu LARCHER – 25/03/2019
• CERTESS® Carbon: DLC, DDT, DCX,
DCY, DCZ…
• CERTESS® Nitro: X, XC, SD, Ti…
• CERTESS® Optal: Optical coatings
PVD : Physical Vapor Deposition
PVD technologies describes a variety of vacuum deposition
methods which can be used to produce thin films and coatings
HEF group’s
patented PVD
coatings are called
CERTESS®

21. 23 CONFIDENTIAL GREEN
PVD coatings: are they useful?
HEF Presentation – Matthieu LARCHER – 25/03/2019
✓ Outstanding wear resistance
✓ Outstanding friction properties
✓ Cosmetically appealing
PVDCoatings

22. 24 CONFIDENTIAL GREEN
PVD Coatings: How is it working?
HEF Presentation – Matthieu LARCHER – 25/03/2019
PVDCoatings
Surface
Preparation
• Small
polishing
• Correction
of surface
defects
Cleaning
• High-
efficiency
• No particle
allowed
• Customized
PVD
Coating
• Type
• Properties
• Areas to be
coated
Inspection
• Mechanical
properties
• Visual
• Surface condition prior to coating is key. The coating follows
the peaks and valleys.
• Coating type, thickness and surfaces customized for each
applications
Standard Process

23. 25 CONFIDENTIAL GREEN
PVD Coatings: Also integrated
HEF Presentation – Matthieu LARCHER – 25/03/2019
PVDCoatings
Consumables
(Targets for the coatings)
Equipement
(fabrication of the PVD coating machine)
Service
(in the jobbing network TECHNIQUES
SURFACES. Example TS Thailand)

24. CONFIDENTIAL GREEN
Thank you.
Do you have any
questions?
HEF Presentation – Matthieu LARCHER – 25/03/2019