duplex: ion nitriding + hard coating
Objective: Reinforce the mechanical strength of the underlay and improve wear resistance on the surface of the part.
Duplex is the superposition of two treatments:
- Thermochemical diffusion treatment (such as nitriding)
- A hard deposit
This type of double-treatment is particularly well suited to parts that are subject to high mechanical stress and require enhanced fatigue resistance in the undercoat and wear resistance on the surface.
For study and order
Information to be communicated :
- Steel grade (standardized designation preferred)
- Previous treatments.
- Functional parts, geometric tolerances to be respected
- Hardness tolerances.
- Thickness required
- Part layout, weight, number of parts per shipment and per year.
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business sectors concerned
Duplex treatment is recommended for parts subject to high mechanical stress, such as: deep drawing dies, mold cavities, containers, form rollers, cams, gears....)
Our various documentations
Our FAQs
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.
This process significantly increases resistance to wear, abrasion, and friction. As a result, the service life of the components is greatly extended.
Standard thicknesses are of the order of 3µm and deposition is carried out on finished parts.
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.
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...
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.
Incorporate carbon below the surface of the steel part to improve fatigue and wear resistance on the surface, while maintaining good core mechanical properties.
Do you have a question or a need?
Our design office can advise you on the feasibility of your project.
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