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In 1956, Carl Johnson of Durox International in Luxembourg developed a method for cutting plastic shapes using a thin stream high-pressure water jet, but those materials, like paper, were soft materials. [4] In 1958, Billie Schwacha of North American Aviation developed a system using ultra-high-pressure liquid to cut hard materials. [5]
Ultra high pressure water jet cutters are used to cut a wide variety of materials including granite, concrete (see hydrodemolition), ceramics, fabric and even Kevlar. [15] One such cutter delivers 55,000 psi (380 MPa) through a nozzle 0.003 inches (76 μm) in diameter at 1 kilometre per second, which can cut a person at a close range.
Robotic Hydrodemolition in Folkestone, UK. Hydrodemolition of concrete exposing the rebar.. Hydrodemolition (also known as hydro demolition, hydroblasting, hydro blasting, hydromilling, waterblasting, and waterjetting) is a concrete removal technique which utilizes high-pressure water, often containing an abrasive material, to remove deteriorated and sound concrete as well as asphalt and grout.
English: Water jet cutter (head): 1 - high-pressure water inlet, 2 - jewel (ruby or diamond), 3 - abrasive (garnet), 4 - mixing tube, 5 - guard, 6 - cutting water jet ...
A similar technology is the high pressure hybrid water-abrasive-ice jet treatment. Such technology is based on a high- pressure abrasive-water jet with addition of dry-ice pellets CO 2. Borkowski et al. [Bor03] show that effectiveness of surface treatment with the hybrid jet depends on the quality of ice particles.
A 5-axis water jet cutter and a part manufactured with it. Multiaxis machining is a manufacturing process that involves tools that move in 4 or more directions and are used to manufacture parts out of metal or other materials by milling away excess material, by water jet cutting or by laser cutting. This type of machining was originally ...
Water jet may refer to: A jet of water under pressure, like in an ornamental fountain or drain cleaner; Pump-jet, a marine propulsion mechanism for jetskis and other types of boats; Water jet cutter, a tool for cutting and the machining of engineering materials; Water-jet printer, a printer that makes use of water instead of ink
Pressure inside reactor for the synthesis of high-pressure polyethylene (HPPE) [76] 250 MPa 36,000 psi Record diesel engine common rail fuel system pressure [77] 400 MPa 58,000 psi Chamber pressure of late 1910s .50 Browning machine gun discharge [citation needed] 240–620 MPa 35,000–90,000 psi Water pressure used in a water jet cutter [78 ...
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