What factors affect the cutting depth and surface roughness value of the waterjet cutting machine?

In the metal cutting process, the cutting process of the waterjet cutting machine is a relatively ideal cutting technology, and the choice of waterjet accessories for the waterjet cutting machine is one of the problems that must be faced. The change of any parameter in the waterjet machining process will more or less affect the stability of the balance gap. What factors affect the cutting depth and surface roughness value of the waterjet cutting machine?

1. Gap and current density
Practice has proved that under the premise of determining the material structure, the surface roughness of the water jet cutting machine will actually be affected by many factors. In order to ensure the efficiency and quality of waterjet cutting, many issues should be considered when selecting waterjet accessories. It has been observed and discovered that even for the same batch of processed workpieces, the balance gap will affect the consistency of their dimensions, which is the accuracy of the waterjet cutting machine. . Due to the small gap and high current density processing, various metallographic structures can be uniformly dissolved, so a small surface roughness value can be obtained.
2. Electrolyte flow rate and uniform flow field setting
Secondly, proper electrolyte flow rate and uniform flow field setting can also promote water cutting machine processing to obtain smaller surface roughness values. At the same time, the temperature of the electrolyte should be controlled in an appropriate range. Practice has proved that when the temperature is low, the passivation is serious, and the uneven dissolution of the anode surface increases the surface roughness value. In addition, the water jet cutter should try to choose the electrolyte that is compatible with the material of the workpiece, so as to reduce the surface roughness value.
3. The impact time of the water jet to draw the material
In addition, a large number of experiments show that the number of impacts of water to a certain point on the cutting depth of the waterjet cutting machine is similar to the impact time of the water jet on the cutting depth. When cutting inside a slot, the first few cuts of the water jet cutter play a major role. At this time, the number of cuts has a significant impact on the cutting depth.
In short, the efficiency principle of the selection of accessories for water jet cutting machines is inseparable from other principles, especially the economic principle. The main purpose of requiring efficiency is to ensure the economy of the entire process. In order to meet the efficiency principle of cost-effective water jet cutting machine accessories, the first is to ensure the efficiency under the premise of acceptable processing accuracy and acceptable stability; of course, efficiency will not be emphasized under all conditions.