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Cold Spray
Cold spray is a manufacturing and repair technique that uses a high-speed gas jet to spray metal powders onto a surface, building up a solid layer without melting the materials. It's often used to fix worn or damaged metal parts on vehicles, aircraft, or ships.
TECHNICAL DEFINITION
Cold spray is a solid-state additive manufacturing process where metallic or composite powder particles are accelerated in a supersonic gas jet and bond kinetically upon impact with a substrate, used for material deposition, component repair, and surface coating in aerospace and defense applications without significant thermal distortion.
BACKGROUND
Pepper spray, oleoresin capsicum spray, OC spray, capsaicin spray, mace, or capsicum spray is a lachrymator product containing as its active ingredient the chemical compound capsaicin, which irritates the eyes with burning and pain sensations and so causes them to close, bringing temporary blindness. This blindness allows officers to more easily restrain subjects and permits people in danger to use pepper spray in self-defense for an opportunity to escape. It also causes temporary discomfort and burning of the lungs which causes shortness of breath. Pepper spray is used as a non-lethal weapon in policing, riot control, crowd control, and self-defense, including defense against violent or threatening animals.
READ MORE ON WIKIPEDIASYNONYMS & ALIASES
- kinetic metallization
- gas dynamic spray
- kinetic spray
- supersonic particle deposition
- cold gas dynamic spraying
- solid-state deposition
USAGE NOTE
Defense applications leverage cold spray for field-expedient repair of high-value components, such as aircraft landing gear or engine casings, extending service life without the heat damage of welding.
DEVELOPERS
Organizations developing technology related to Cold Spray.
A primary driver of cold spray research and development within the U.S. Department of Defense. ARL develops and qualifies cold spray processes for repairing and sustaining military equipment, such as helicopter gearboxes and aircraft components, often in forward-deployed environments.
A leading developer and manufacturer of high-pressure cold spray systems and solutions. They work extensively with the U.S. military to provide on-site repair capabilities for high-value assets, reducing downtime and logistical costs.
An Australian company that developed a proprietary supersonic 3D deposition (SP3D) technology, a form of cold spray. They specialize in rapidly manufacturing metal parts in the field and have conducted numerous field trials with military forces, including the US, UK, and Australian armies.
Utilizes a large-scale additive manufacturing process called Titomic Kinetic Fusion, which is a form of cold spray. The company focuses on producing large, high-performance metal parts for the aerospace and defense industries, including armor and structural components.
A designer and manufacturer of high-performance motion control systems for aerospace and defense. Moog's additive manufacturing division utilizes cold spray technology for the repair and remanufacturing of critical, high-value metallic components, extending the service life of military hardware.
A multi-university research consortium, led by the University of Akron, that partners with government agencies and defense contractors to advance cold spray science and technology. They work on developing new materials, processes, and applications relevant to military needs.
A major industrial gas and engineering company whose Surface Technologies division provides a wide range of coatings, including cold spray. They serve the aerospace and defense sectors by providing wear-resistant coatings and dimensional restoration for critical components.