What is the principle of water cutting machine?

Water is pressurized to 400MPa with ordinary water and ultra-high pressure pump. In order to obtain a stable high-pressure water jet, the generated high-pressure water needs to enter the accumulator to stabilize the pressure. Then it passes through a very small nozzle (water jet cutting head device, its diameter is about 0. 1-0.4mm), and the speed of water arrow generated by it is close to 1 km/s (about 3 times the speed of sound). Water arrows are similar to cutting tools and are used to cut the workpiece to be processed.

This technology originated in the United States, which is beneficial to the cold cutting of materials without changing the physical and chemical properties of materials. After continuous improvement of technology, graphite sand? The mixing of emery and other abrasives in high-pressure water greatly improves the cutting speed and thickness of water jet.

Features of water cutting machine tools:

Water cutting machine tools are superior to other processing technologies, such as flame cutting, plasma processing, laser processing, EDM, turning, milling and planing. At the same time, water cutting will not produce harmful gas or liquid, and will not produce heat on the surface of the workpiece. This is a truly multifunctional, efficient and cold cutting process.

For example, in metal cutting, a variety of processing methods coexist, including tools, lasers, flame cutting (plasma cutting), electric spark, wire cutting, water cutting and other processing methods.

The above contents refer to:

Baidu encyclopedia-water cutting machine