For example, in metal cutting, various processing methods coexist, including cutting tool, laser, flame cutting (plasma cutting), EDM, wire cutting, water cutting and other processing methods. All kinds of cutting methods have their own advantages and limitations, and each occupies part of the market. However, among many cutting methods, only water cutting belongs to cold cutting. The kinetic energy of abrasive water jet is directly used to cut the metal to achieve the purpose of cutting. There is no chemical change in the cutting process. It has the advantages of no impact on the physical and chemical properties of cutting materials, no thermal deformation, narrow cutting seam, high precision, smooth cutting surface, clean and pollution-free, It can process materials that cannot be processed or difficult to be processed by traditional processing and other processing methods, such as glass, ceramics, composite materials, reflective materials, chemical fibers, thermal sensitive materials, etc.
