19.57
Unknown
Abrasive blasting is the operation of forcibly propelling a stream of abrasive material against a surface under
high pressure to
smooth a rough surface, roughen a
smooth surface, shape a surface, or remove surface contaminants. A pressurized fluid, typically air, or a centrifugal wheel is used to propel the blasting
material (often called the media). The first abrasive blasting
process was patented by Benjamin Chew Tilghman on 18 October 1870.[1]
There are several variants of the process, such as bead blasting,
sand blasting, sodablasting,
and shot blasting.
Types
