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The term abrasive jet refers specifically to the use of a mixture of water and an abrasive to cut hard materials such as metal, stone or glass, while the terms pure waterjet and water-only cutting refer to waterjet cutting without the use of added abrasives, often used for softer materials such as wood or rubber.
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.
Hashish joined Flow Research Inc., now Flow International Corporation in Kent, Washington, U.S., as a research scientist, in early 1979.Although Flow was involved in waterjet cutting, mainly for mining and limited factory applications, it wasn't until Hashish invented a new technique to add abrasives to the waterjet that the strongest cutting tool in the world was realized. [3]
A miner using a hydraulic jet to mine for gold in California, from The Century Magazine January 1883. Hydraulic mining is a form of mining that uses high-pressure jets of water to dislodge rock material or move sediment. [1] In the placer mining of gold or tin, the resulting water-sediment slurry is directed through sluice boxes to
OMAX was established in 1993 by Dr. John Cheung and Dr. John Olsen. They made high-pressure abrasive jet machining (a machining and fabrication process using a mixture of strong abrasives and liquid propelled by a high velocity gas) to erode material to form intricate shapes or specific edge shapes. [3] [4] [5]
An example of this is water jet cutting. Water jet cutting involves pressurized water over 620 MPa (90,000 psi) and can cut metal and have a finished product. This process is called cold cutting, which eliminates the damage caused by a heat-affected zone, as opposed to laser and plasma cutting.