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Cold Spray

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CIRP Encyclopedia of Production Engineering
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Synonyms

Cold gas dynamic; Cold gas dynamic manufacturing; Cold gas spray; Kinetic spray; Supersonic spray

Definition

Cold spray (CS) is a solid-state additive process, whereby material layers are added onto substrates or more general engineering components through the acceleration of the feedstock material (in the form of powder) up to supersonic speed in a converging–diverging nozzle. Melting temperatures in the process are typically not reached.

Theory and Application

Introduction and Working Mechanism

In the 1980s, a group of scientists from the Institute of Theoretical and Applied Mechanics of the Siberian Branch of the Russian Academy of Sciences (ITAM of RAS) in Novosibirsk, Russia, conducted experimental and theoretical work on the interaction of a two-phase flow with the surface of immersed bodies. They used new gas dynamics diagnostic tools to study two-phase flow around bodies, which resulted in the discovery of some sort of “deposition phenomena.” The scientists had in fact...

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References

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Correspondence to Rocco Lupoi .

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Lupoi, R. (2018). Cold Spray. In: The International Academy for Production (eds) CIRP Encyclopedia of Production Engineering. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-35950-7_16809-2

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  • DOI: https://doi.org/10.1007/978-3-642-35950-7_16809-2

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  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-642-35950-7

  • Online ISBN: 978-3-642-35950-7

  • eBook Packages: Springer Reference EngineeringReference Module Computer Science and Engineering

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Chapter history

  1. Latest

    Cold Spray
    Published:
    23 February 2018

    DOI: https://doi.org/10.1007/978-3-642-35950-7_16809-2

  2. Original

    Cold Spray
    Published:
    12 May 2015

    DOI: https://doi.org/10.1007/978-3-642-35950-7_16809-1