Waterjet cutting (or more accurately abrasivejet cutting) is one of the useful and unique metal fabrication services available at American Metalcraft Industries.
Abrasivejets have been used in industry since 1982. The precursor to abrasivejets, waterjets, have been in use since 1970. Abrasivejets are used by industries such as the automobile, aerospace, and glass industries, to create precision parts from hard-to-cut materials.An abrasivejet pressurizes water up to 55,000 pounds per square inch (psi) [379,000 kiloPascals (kPa)] and then forces it through a small sapphire orifice at 2500 feet (762 meters) per second, or about two and half times the speed of sound.
Garnet abrasive is then pulled into this high-speed stream of water, and mixed with the water in a long ceramic mixing tube. A stream of abrasive-laden water moving at 1000 feet per second (305 meters/sec) exits the ceramic tube. This jet of water and abrasive is then directed at the material to be machined. The jet drags the abrasive through the material in a curved path and the resulting centrifugal forces press the particles against the work piece. The abrasivejet's cutting action is a grinding process, but rather than using a solid grinding wheel, the forces and motions of the cutting action are provided by water.
Long regarded as a tool for trained experts, abrasivejets have changed dramatically in the last few years. New technologies have made it possible for fabrication shops to offer this technology for their customers. Many don't, but American Metalcraft does!