Stability Analysis and Structure Optimization of Unequal-Pitch End Mills

The damping performance of unequal tooth milling cutters is controlled by the pitch parameters. How to improve the vibration damping and dynamic balance of milling cutters needs to be further studied. This paper analyzes the pitch angle through the stability of the lobe diagram and the spectral char...

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Autores principales:	Wanying Nie, Minli Zheng, Shicheng Xu, Yuexiu Liu, Haibin Yu
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	unequal-pitch end mill cutting stability dynamic balance groove shape dynamic performance Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85
Acceso en línea:	https://doaj.org/article/f3d06ed72f8b4d01a8c4b3552fbe0a1a
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spelling	oai:doaj.org-article:f3d06ed72f8b4d01a8c4b3552fbe0a1a2021-11-25T18:15:36ZStability Analysis and Structure Optimization of Unequal-Pitch End Mills10.3390/ma142270031996-1944https://doaj.org/article/f3d06ed72f8b4d01a8c4b3552fbe0a1a2021-11-01T00:00:00Zhttps://www.mdpi.com/1996-1944/14/22/7003https://doaj.org/toc/1996-1944The damping performance of unequal tooth milling cutters is controlled by the pitch parameters. How to improve the vibration damping and dynamic balance of milling cutters needs to be further studied. This paper analyzes the pitch angle through the stability of the lobe diagram and the spectral characteristics, and unequal-pitch end mills with asymmetric structure were determined to have better cutting stability. Due to the principle error of the asymmetrical tool, dynamic balance accuracy is poor. The dynamic balance of the tool is analyzed, and the centroid model of the tool is established. In order to improve the dynamic balance accuracy of tools, the parameters of the groove shape are analyzed and optimized, and balance accuracy is improved. Through modal and milling-force analysis, the relative vibration displacement and cutting force of the optimized tool were reduced by 17% and 10%, respectively, which determined that such tools have better dynamic performance. Here, unequal tooth end mills could reduce vibration and had higher accuracy in dynamic balance by adjusting the parameters of the pitch angles and chip pockets, so that the tool could have higher cutting stability.Wanying NieMinli ZhengShicheng XuYuexiu LiuHaibin YuMDPI AGarticleunequal-pitch end millcutting stabilitydynamic balancegroove shapedynamic performanceTechnologyTElectrical engineering. Electronics. Nuclear engineeringTK1-9971Engineering (General). Civil engineering (General)TA1-2040MicroscopyQH201-278.5Descriptive and experimental mechanicsQC120-168.85ENMaterials, Vol 14, Iss 7003, p 7003 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	unequal-pitch end mill cutting stability dynamic balance groove shape dynamic performance Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85
spellingShingle	unequal-pitch end mill cutting stability dynamic balance groove shape dynamic performance Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85 Wanying Nie Minli Zheng Shicheng Xu Yuexiu Liu Haibin Yu Stability Analysis and Structure Optimization of Unequal-Pitch End Mills
description	The damping performance of unequal tooth milling cutters is controlled by the pitch parameters. How to improve the vibration damping and dynamic balance of milling cutters needs to be further studied. This paper analyzes the pitch angle through the stability of the lobe diagram and the spectral characteristics, and unequal-pitch end mills with asymmetric structure were determined to have better cutting stability. Due to the principle error of the asymmetrical tool, dynamic balance accuracy is poor. The dynamic balance of the tool is analyzed, and the centroid model of the tool is established. In order to improve the dynamic balance accuracy of tools, the parameters of the groove shape are analyzed and optimized, and balance accuracy is improved. Through modal and milling-force analysis, the relative vibration displacement and cutting force of the optimized tool were reduced by 17% and 10%, respectively, which determined that such tools have better dynamic performance. Here, unequal tooth end mills could reduce vibration and had higher accuracy in dynamic balance by adjusting the parameters of the pitch angles and chip pockets, so that the tool could have higher cutting stability.
format	article
author	Wanying Nie Minli Zheng Shicheng Xu Yuexiu Liu Haibin Yu
author_facet	Wanying Nie Minli Zheng Shicheng Xu Yuexiu Liu Haibin Yu
author_sort	Wanying Nie
title	Stability Analysis and Structure Optimization of Unequal-Pitch End Mills
title_short	Stability Analysis and Structure Optimization of Unequal-Pitch End Mills
title_full	Stability Analysis and Structure Optimization of Unequal-Pitch End Mills
title_fullStr	Stability Analysis and Structure Optimization of Unequal-Pitch End Mills
title_full_unstemmed	Stability Analysis and Structure Optimization of Unequal-Pitch End Mills
title_sort	stability analysis and structure optimization of unequal-pitch end mills
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/f3d06ed72f8b4d01a8c4b3552fbe0a1a
work_keys_str_mv	AT wanyingnie stabilityanalysisandstructureoptimizationofunequalpitchendmills AT minlizheng stabilityanalysisandstructureoptimizationofunequalpitchendmills AT shichengxu stabilityanalysisandstructureoptimizationofunequalpitchendmills AT yuexiuliu stabilityanalysisandstructureoptimizationofunequalpitchendmills AT haibinyu stabilityanalysisandstructureoptimizationofunequalpitchendmills
_version_	1718411476118536192

Stability Analysis and Structure Optimization of Unequal-Pitch End Mills

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