Patent ID: 7207868
Filing Date: 2007-04-24
Classification: B24C

Abstract:
1. A cutting apparatus jetting, at a high pressure, water containing abrasive grains from a nozzle so as to cut a workpiece along cutting lines extending in two intersecting directions, comprising: a fixing table fixing said workpiece; groove portions provided in said fixing table at respective positions below said cutting lines; protruded portions provided in respective regions of said fixing table other than regions where said groove portions are provided, in a manner that said workpiece contacts said protruded portions; support portions provided to connect said protruded portions substantially in parallel with a cutting line extending in at least one of said two directions along said groove portions; a frame portion provided to connect said support portions to each other in at least a part of an outer periphery of said fixing table; and protection members attachably and detachably provided to cover said support portions, said protection members provided for the purpose of allowing said water containing abrasive grains to impinge against the protection members and thereby preventing said water containing abrasive grains from impinging against said support portions.