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2. Cold spray technologies
2.1 High-pressure and low-pressure processes
The term cold spray is generic. Here, we refer to the names used, particularly in the industrial sector, for processes based on the principle described at the start of this article. On this basis, two main types of cold spray were developed in parallel: high-pressure and low-pressure, depending on whether the gas pressure is above or below one megapascal. It's easy to understand the subjectivity involved in this distinction, given the evolution of spray equipment: today's "low-pressure" may have been considered "high-pressure" yesterday. This can lead to confusion, with some people today introducing the so-called intermediate pressure range for this very reason. This is why it would be more accurate to distinguish the processes by the method...
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Cold spray technologies
Flow technology (gas + powder)
Bibliography
Standardization
- Metallic materials – Rotary bar bending fatigue tests. - BS ISO 1143 :2010 - Décembre 2010
- Essai d'adhérence par traction de revêtements projetés thermiquement. - ASTM C633-13 - 2017
- Thermal spraying – Tensile adhesion testing. - NF EN ISO 14916 - Mai 2017
- Particle size analysis – Laser diffraction methods. - ISO 13320 - Janvier 2020
- Environmental management – Lifecycle analysis – Principles...
Regulations
ATEX Directive 201/34/EU on equipment and protective systems intended for use in potentially explosive atmospheres.
Patents
DANTIN (B.) et al. – Airbus Group SAS, Structure with electrically conductive lines on the surface and process for producing electrically conductive lines by cold spray, Patent WO 2016/107918 A1, 2016.
CHOHRA (M.) et al. – Dassault-Aviation, Composite part featuring a functional layer and a polymer binder, and associated cold spray manufacturing process. French patent # 3 006 914, 2013.
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Directory
Manufacturers – Suppliers – Distributors (non-exhaustive list)
For high-pressure cold spray: Impact Innovations/Rattenkirchen-Germany
https://impact-innovations.com
For low-pressure cold spray: CenterLine Ltd./Windsor-Canada.
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