Authors: D.B. Shatko, V.S. Lyukshin

Title of the article: Investigation of cutting capacity of single abrasive grains depending on their shape and spatial orientation

Year: 2023, Issue: 5, Pages: 23-30

Branch of knowledge: 2.5.6. Engineering technology

Index UDK: 621.921 : 621.923

DOI: 10.26730/1999-4125-2023-5-23-30

Abstract: Analysis of existing data shows that the performance of commercially available petal wheels often does not meet the requirements of the grinding process. This, among other reasons, is largely predetermined by the fact that the wheel lobes consist of a conventional grinding paper made of abrasive grains of arbitrary shape, without being oriented relative to the surface of the substrate. This has a negative effect on the performance of the wheel as a whole, since the arbitrary shape, geometry and orientation of the grains leads to the fact that many of them do not participate in the combined process of micro-cutting, painting and flying out of the bundle, or deform and heat the metal without cutting it. The present study is devoted to the study of the cutting capacity of single abrasive grains of different shapes and orientations. The cutting capacity of abrasive grains is one of the most important parameters affecting the performance of grinding tools. Therefore, work aimed at comprehensively studying the cutting ability of abrasives of various shapes and orientations is of great relevance. This kind of research will allow to optimally select abrasives for the manufacture of grinding tools for specific operating conditions. The purpose of the work is to investigate the effect of the shape and orientation of abrasive grains on the cutting capacity. The original approach to the study of this issue is described. The results of studies of cutting ability of both single grains and petal grinding wheels made from them are presented. Practical recommendations for the use of certain varieties of grinding grains are formulated.

Key words: Single grinding grain grain shape grain orientation cutting ability petal wheel cutting mode

Receiving date: 17.10.2023

Approval date: 20.11.2023

Publication date: 30.11.2023

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