How to control cutting accuracy and speed of waterjet?

The water cutting process is completed using ultra-high pressure technology, just press the ordinary tap water to 250-400Mpa pressure, and then spray it through the gemstone nozzle with an inner hole diameter of about 0.15-0.35mm to form a speed of about 800- 1000m / s high-speed jet, this is the water jet that can be used to cut soft base materials.

Waterjet can be used to cut two-dimensional shapes. The cutting objects include metals, ceramics, plastics, stones, glass, carbon fiber and other materials, and even complex shapes can be produced. Compared with other cutting methods, the waterjet can remove the material without heat, so that the debris of the material can be washed away by the cutting water flow, which improves the cutting efficiency.

The cutting speed and cutting accuracy of the waterjet are two closely related parameters. Only when the cutting accuracy of the waterjet is met can the speed be further pursued. Due to the short cutting platform, it is difficult to judge whether the maximum speed is reached with the eyes. Next, we can use the software simulation function of the servo drive of the cutting machine to check whether the motor speed reaches the maximum.

Under normal circumstances, when testing the waterjet cutting speed, there is no need for solid cutting to increase the acceleration and deceleration; each axis can be tested separately or simultaneously. In addition, the precision of waterjet cutting is generally required to be less than ± 0.5mm for the construction industry; but it is required to be less than ± 0.01mm for automotive mirrors; the lower the cutting requirements for steel plate processing it is good.

Now the cutting accuracy that each manufacturer can provide is generally less than ± 0.2mm, but this can not be seen only in the introduction of the product manual. During acceptance, there should be a complete set of procedures for testing the cutting accuracy. The accuracy of the product actually cut by the water jet should be measured Shall prevail.