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A Novel Coaxially Laser-Assisted (COLA) Cold Spray System

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review


Original languageEnglish
Title of host publicationITSC2015: International Thermal Spray Conference, May 11-14, 2015, Long Beach, California, USA
Number of pages7
Publication statusPublished - 2015
Publication typeA4 Article in a conference publication
EventInternational Thermal Spray Conference -
Duration: 1 Jan 1900 → …


ConferenceInternational Thermal Spray Conference
Period1/01/00 → …


Laser-assisted cold-spray has been recognized for over a decade as a technique capable of depositing high quality coatings. By laser heating (and hence softening) the surface being coated, deposition can occur at particle velocities lower than those normally associated with the cold spray process. This can be used to increase deposition rate. However, it can also be used to facilitate the deposition of higher hardness material combinations, normally more out of the reach of the conventional cold spray process. Laser heating can also reduce the requirements of the process on gas usage and gas heating for a given combination, making it more cost-effective. In the work reported below, the capability of a novel co-axially laser-assisted system (COLA) to deposit higher hardness materials, relevant to a range of different industrial applications, has been evaluated. This system can be retro-fitted to cold spray equipment.

Publication forum classification

Field of science, Statistics Finland