The invention discloses an
engraving method of closed-
loop control over a water
milling cutter by applying a 3D digital model. Firstly, the 3D digital model of a product is established by adopting CAD (
Computer Aided Design)
software in an upper computer, then a water cutter is controlled to realize the function of a
milling cutter so as to engrave and process to-be-processed materials, the
processing schedule and effect are detected by applying a 3D
scanner, and the speed and moving direction of the water cutter are controlled according to data feedback detected by the 3D
scanner. According to the
engraving method, a 3D digital modeling technique, a 3D scanning technique, a
cutting technique of the water cutter and a control technique of a
manipulator are organically integrated and are applied to
engraving and
processing metal and
nonmetal. The engraving method has the advantages that complex special-shaped workpieces and molds can be accurately, quickly and directly manufactured, a large quantity of manpower and materials are saved, the effects of good safety, environmental friendliness and low cost are achieved, and environmental pollutants such as waste water, dust,
smoke and the like are not generated.