The article reflects the possibility to solve the problem of choosing waterjet cutting optimum conditions based on acoustic emission data. Modeling of the waterjet cutting process by the finite-element method is carried out. The existence of an optimum point in the waterjet cutting performance is shown. Corresponding experiment data is gathered and compared with the simulation results. The correlation between the waterjet cutting performance and the acoustic emission data is shown.

The article deals with the actual problem of finding new highly efficient methods for dispersing suspensions prepared using nanomaterials. The criterion of efficiency is taken to ensure the minimum particle size, after the implementation of a particular dispersion technology. The results of experiments on the dispersion of nanoscale suspensions by the method of ultrasonic and ultrajet processing are presented. It is shown that the ultra-jet dispersion method can be applied to deagglomerate microparticles and solve problems of providing the necessary dispersion in suspensions. Based on comparative experimental data, it has been shown that the ultra-jet method has several advantages.