STUDY RESULTS DEFINITIONS CONDITIONS FOR SELF-GROUNDING OF THE WOOD CUTTING BLADE TOOL

UDC 674.05:621.923.6

  • Grishkevich Aleksandr Aleksandrovich − PhD (Engineering), Associate Professor, Head of the Department of Woodworking Machines and Tools. Belarusian State Technological University (13a, Sverdlova str., 220006, Minsk, Republic of Belarus). E-mail: dosy@belstu.by

  • Bolochko Dmitry Leonidovich − PhD student, the Department of Woodworking Machines and Tools. Belarusian State Technological University (13a, Sverdlova str., 220006, Minsk, Republic of Belarus). E-mail: dima.bolochko.94@mail.ru

DOI: https://doi.org/10.52065/2519-402X-2021-246-46-350–355

Key words: blade, wear, cutting edge, self-sharpening, rounding radius, sharpening angle.

For citation: Grishkevich A. A., Bolochko D. L. Study results definitions condtions for self-grounding of the wood cutting blade tool. Proceedings of BSTU, issue 1, Forestry. Nature Management. Processing of Renewable Resources, 2021, no. 2 (246), pp. 350–355 (In Russian). DOI: https://doi.org/10.52065/2519-402X-2021-246-46-350–355.

Abstract

The durability period of a wood-cutting tool and the cutting power are in a decisive way related to the radius of rounding of the cutting edge of the blade, which constantly changes during operation.

At present, the time of the development of the science of cutting tools, the main problem should be considered the study of the physical nature of wear - bluntness of cutting tools and the choice of optimal, more wear-resistant materials for the manufacture of cutting elements, as well as improving the geometric parameters of wood cutting tools and the choice of optimal modes cutting.

One of the ways to increase the productivity of woodworking equipment is to increase the tool life, which is determined by the radius of the cutting edge rounding. Therefore, keeping the set rounding radius unchanged is a topical and timely task. This is especially true for high-performance machine lines, where the duration of tool replacement has a very strong effect on the cost of production.

It is possible to achieve the invariability of the set radius of rounding of the cutting edge of the blade when using the so-called self-sharpening effect in the tool. In this case, the mechanisms for the implementation of this effect may be different.

This work presents the results of studies on the study of the mechanism of self-sharpening of blades in order to create in the future wood-cutting tools operating on this principle.

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