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Automotive market

Over the years, the THERMILYON Group has built up close working relationships with key players in the automotive industry and their supplier networks, offering comprehensive heat treatment support. Each of our services meets the high quality standards demanded by our automotive partners.

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The automotive industry: the need for flawless productivity

The automotive sector requires rigorous quality management, in line with IATF 16949 and VDA 6.3 auditing practices. Productivity and reproducibility of processes, essential to achieving thegoal of zero defects, are fundamental requirements in this field.

Treated parts
1000000

Several million parts processed every month

3

sites dedicated to the automotive market

2

IATF 16949-certified sites

Solutions for the automotive market

To meet market requirements, a range of dedicated coatings has been developed

Heat treatment
Heat treatment
parts partially coated with platin vacuum coating
Vacuum deposition
Vacuum deposition

Market characteristics

The automotive market places high demands on the flexibility, productivity and quality of all heat treatments.

Flexibility

We operate a continuous work organization to respond quickly and efficiently to urgent production needs 7 days a week, 24 hours a day.

Proximity

Thanks to our extensive industrial network, we offer fast response times and optimized, high-performance production schedules, reinforcing our ability to serve customers in the automotive industry with agility and efficiency.

Quality organization

Our ISO 9001 and IATF 16949-certified quality management systems are designed to meet the exacting standards of the automotive industry. Our organization is well versed in auditing techniques such as VDA 6.3 and CQI 09, to maintain and continually improve our efficiency and compliance.

Competitiveness

- Use of equipment specifically adapted for mass production.
- Automation of production processes to guarantee consistent quality.
- Computerized supervision of heat treatments to ensure reproducibility and a minimized scrap rate.
- Development of vacuum treatments, guaranteeing exceptional cleanliness of parts without the need for post-treatment washing or sandblasting, thus reducing machining costs thanks to limited deformation.

High-level global offering

We offer a wide range of heat treatments, enabling our customers to reduce the number of suppliers and simplify their supply chains.

Objective advice and recommendations

Our experts offer invaluable advice and strategic recommendations, highly valued by design offices, to optimize the design and manufacture of automotive parts.

Securing

We guarantee the safety of production flows across all our sites, with standardized shuttles and equipment for flawless uniformity and reliability.

Customer testimonials

Claude Madelmont 

Borg Warner - Responsible for supplier selection in Europe, China and the USA

"We manufacture parts for electric, hybrid and internal combustion vehicles. These parts have electro-magnetic and wear-resistance characteristics. This is a very important point. The THERMILYON Group specializes in nitrocarburizing under controlled atmosphere. This is a state-of-the-art treatment, with Trempelec processing 15,000 to 25,000 parts at a time."

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Portrait of Claude Madelmont, Borgwarner collaborator

    Heat treatment and vacuum deposition for the AUTOMOTIVE sector.

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    Do you have a question or a need?

    Our team dedicated to the automotive market answers your questions.

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    Our FAQs

    What is vacuum deposition?

    Vacuum deposition is a surface treatment used to deposit a material or alloy on a mechanical part.

    The use of vacuum technology ensures a perfectly clean, non-polluting process.

    It is not subject to REACH legislation.

    What are the advantages of PVD technology?

    This process greatly increases resistance to wear, abrasion, friction and corrosion. As a result, component life is greatly extended.

    Standard thicknesses are of the order of 3µm and deposition is carried out on finished parts.

    What's the difference between PVD and PACVD?

    PVD is physical vapor deposition. The element to be deposited is obtained by evaporation or sputtering via a physical process. PACVD is plasma-assisted chemical vapor deposition. The element to be deposited is obtained from chemical reactions. Plasma enables this chemical reaction to take place at lower temperatures.

    What are the industrial applications of vacuum deposition?

    Vacuum deposits are classified into several categories: anti-wear, friction, decorative and biocompatibility. The applications are therefore very varied: automotive components, aerospace, tooling, cutting tools, medical devices, decorative parts...

    How do I choose the right deposit method?

    The deposition method depends above all on the nature of the coating to be deposited and the substrate.

    If the substrate cannot be heated to high temperature, the deposition must be carried out using low-temperature technology.

    If the coating to be deposited consists of a solid element (metal or graphite target), a physical process such as PVD is used. If the coating consists of a gas or liquid, a chemical process such as CVD or PACVD is used.

    What is the purpose of case-hardening? 

    Incorporate carbon below the surface of the steel part to improve fatigue and wear resistance on the surface, while maintaining good core mechanical properties.

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