INFLUENCE OF THE LOSS OF THE CUTTING ABILITY OF THE KNIFE OF THE MILLING-CUTTER MACHINE ON THE QUALITY OF THE END CUT OF THE ELEMENT OF TECHNOLOGICAL CHIPS

UDC 674.914:674.338

  • Klepatski Ihar Kazimiravich − assistant lecturers, the Department of Automation of Industrial Processes and Electrical Engineering. Belarusian State Technological University (13a, Sverdlova str., 220006, Minsk, Republic of Belarurus). E-mail: lucky-35@mail.ru

  • Rapovets Vyacheslav Valer’yevich − PhD (Engineering), Assistant Professor, the Department of Woodworking Machines and Tools. Belarusian State Technological University (13a, Sverdlova str., 220006, Minsk, Republic of Belarurus). E-mail: slavyan_r@mail.ru

DOI: https://doi.org/10.52065/2519-402X-2022-258-2-173-177

Key words: technological chips, cutting, knife, aggregate processing, durability, quality, chippercanter.

For citation: Klepatski I. K., Rapovets V. V. Influence of the loss of the cutting ability of the knife of the milling-cutter machine on the quality of the end cut of the element of technological chips. Proceedings of BSTU, issue 1, Forestry. Nature Management. Processing of Renewable Resources, 2022, no. 2 (258) pp. 173–177 (In Russian). DOI: https://doi.org/10.52065/2519-402X-2022-258-2-173-177.

Abstract

The efficiency of grinding round wood raw materials depends on various factors, in particular, on the wear of the knives of the processing equipment. The wear of knives was determined in the course of a long-term study conducted at the sawmill for the processing of wood raw materials of OJSC Borisovsky DOK. High quality wood chips result in a high and uniform quality pulp, while low quality wood chips result in poor quality pulp or even costly production downsides.

Direct study of the physical state of the studied samples of technological chips (microphotographs of the end cut) directly indicates the dynamic process of loss of technological resistance by the cutting edges of the knife. It is also worth taking into account that the result of the study can be taken as an empirical model. Empirical models allowed for the implementation of additional studies should characterize the monitored parameters to a high degree, and also be suitable for predicting output technological parameters.

This article provides an opportunity to directly assess the effect of the state of the cutting ability of a knife blade on the geometry of the microstructure of an element of technological chips during milling of pine wood with small-blade face-conical cutters.

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10.03.2022