Ways of abrasive blasting technology development

Abstract

Abstract Having analysed problems in abrasive blasting processing, we present solutions. To reduce the probability of failure of the abrasive blasting nozzle, it is necessary to reduce or eliminate the fact of its wear using the air layer between the inner working wall of this tool with the flow of abrasive particles. It is also preferable to remake the layout of the nozzle from solid to assembled unit in order to replace with a new part of the nozzle, which can still become wear-off because of some reasons. As a result of implementation of such abrasive blasting nozzle, there was a need to develop the method of its use. Regarding the quality control of the processed surface, it is usually carried out in such ways: visually during processing; after processing; due to certain processing modes, which are predicted to provide a given surface quality. Using the methods presenting above it is impossible to quantify the quality of the surface, especially during machining. Accordingly, the processed part in some cases returns to machining again. Therefore, it is suggested that active control should be applied, namely to measure, for example, the roughness of the resulting surface during processing. If the degree of roughness is not reached, a signal is sent to the worker or the automated system about the need to finish the surface, or change the processing modes, which will provide the desired result.