Modelling and controlling the process of cutting with complex-geometry tools to improve efficiency of mining machines and plants

Constant quality improvement through automation of production processes is an important prerequisite for increased viability of mining machines and plants. Factors that limit the automation of the cutting machining operations include the problem of controlling the chip formation and chip crushing. S...

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Autores principales:	Mikhailov Stanislav, Kovelenov Nikolai, Burdin Pavel
Formato:	article
Lenguaje:	EN FR
Publicado:	EDP Sciences 2021
Materias:	Environmental sciences GE1-350
Acceso en línea:	https://doaj.org/article/178fb69206b64f3685ae702082777052
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spelling	oai:doaj.org-article:178fb69206b64f3685ae7020827770522021-12-02T17:12:02ZModelling and controlling the process of cutting with complex-geometry tools to improve efficiency of mining machines and plants2267-124210.1051/e3sconf/202132600012https://doaj.org/article/178fb69206b64f3685ae7020827770522021-01-01T00:00:00Zhttps://www.e3s-conferences.org/articles/e3sconf/pdf/2021/102/e3sconf_ipdme2021_00012.pdfhttps://doaj.org/toc/2267-1242Constant quality improvement through automation of production processes is an important prerequisite for increased viability of mining machines and plants. Factors that limit the automation of the cutting machining operations include the problem of controlling the chip formation and chip crushing. Solution of this problem necessitates theoretical description of the material cutting conditions for tools with curvilinear surfaces. The paper describes basic principles of modeling the cutting process using complex-geometry tools with curvilinear rake. The theory is based on the concept of chip formation as a process of inhomogeneous strain in the plastic zone where the chip originates. Based on the analysis of the stress-strain state in the cutting zone, criterial relationships were derived that correlate the geometric parameters of the chip shape and machining conditions of the curvilinear-rake tool. Prerequisites for chip breaking are stability of the chip shape during cutting, stable chip-to-obstacle contact, high chip stiffness and low flexibility. The machining conditions leading to chip fragmentation could be found by solving the strength problem. Through establishing the cause-and-effect relationships of the processes of chip formation, curling and breaking, new approaches to achieving favorable chip shape may be found by exerting deliberate impact on the plastic zone of the chip formation through optimizing the conditions for the chip flow off the tool. The established relationships between the output parameters of the cutting process and process conditions of cutting with a complex-geometry tool offer the way to control the chip flow parameters in various machining operations. The research is aimed at creating scientifically informed design codes and optimization of cutting parameters for tools with curvilinear chip-curling and chip-breaking rake surfaces.Mikhailov StanislavKovelenov NikolaiBurdin PavelEDP SciencesarticleEnvironmental sciencesGE1-350ENFRE3S Web of Conferences, Vol 326, p 00012 (2021)
institution	DOAJ
collection	DOAJ
language	EN FR
topic	Environmental sciences GE1-350
spellingShingle	Environmental sciences GE1-350 Mikhailov Stanislav Kovelenov Nikolai Burdin Pavel Modelling and controlling the process of cutting with complex-geometry tools to improve efficiency of mining machines and plants
description	Constant quality improvement through automation of production processes is an important prerequisite for increased viability of mining machines and plants. Factors that limit the automation of the cutting machining operations include the problem of controlling the chip formation and chip crushing. Solution of this problem necessitates theoretical description of the material cutting conditions for tools with curvilinear surfaces. The paper describes basic principles of modeling the cutting process using complex-geometry tools with curvilinear rake. The theory is based on the concept of chip formation as a process of inhomogeneous strain in the plastic zone where the chip originates. Based on the analysis of the stress-strain state in the cutting zone, criterial relationships were derived that correlate the geometric parameters of the chip shape and machining conditions of the curvilinear-rake tool. Prerequisites for chip breaking are stability of the chip shape during cutting, stable chip-to-obstacle contact, high chip stiffness and low flexibility. The machining conditions leading to chip fragmentation could be found by solving the strength problem. Through establishing the cause-and-effect relationships of the processes of chip formation, curling and breaking, new approaches to achieving favorable chip shape may be found by exerting deliberate impact on the plastic zone of the chip formation through optimizing the conditions for the chip flow off the tool. The established relationships between the output parameters of the cutting process and process conditions of cutting with a complex-geometry tool offer the way to control the chip flow parameters in various machining operations. The research is aimed at creating scientifically informed design codes and optimization of cutting parameters for tools with curvilinear chip-curling and chip-breaking rake surfaces.
format	article
author	Mikhailov Stanislav Kovelenov Nikolai Burdin Pavel
author_facet	Mikhailov Stanislav Kovelenov Nikolai Burdin Pavel
author_sort	Mikhailov Stanislav
title	Modelling and controlling the process of cutting with complex-geometry tools to improve efficiency of mining machines and plants
title_short	Modelling and controlling the process of cutting with complex-geometry tools to improve efficiency of mining machines and plants
title_full	Modelling and controlling the process of cutting with complex-geometry tools to improve efficiency of mining machines and plants
title_fullStr	Modelling and controlling the process of cutting with complex-geometry tools to improve efficiency of mining machines and plants
title_full_unstemmed	Modelling and controlling the process of cutting with complex-geometry tools to improve efficiency of mining machines and plants
title_sort	modelling and controlling the process of cutting with complex-geometry tools to improve efficiency of mining machines and plants
publisher	EDP Sciences
publishDate	2021
url	https://doaj.org/article/178fb69206b64f3685ae702082777052
work_keys_str_mv	AT mikhailovstanislav modellingandcontrollingtheprocessofcuttingwithcomplexgeometrytoolstoimproveefficiencyofminingmachinesandplants AT kovelenovnikolai modellingandcontrollingtheprocessofcuttingwithcomplexgeometrytoolstoimproveefficiencyofminingmachinesandplants AT burdinpavel modellingandcontrollingtheprocessofcuttingwithcomplexgeometrytoolstoimproveefficiencyofminingmachinesandplants
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Modelling and controlling the process of cutting with complex-geometry tools to improve efficiency of mining machines and plants

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