Operating Properties of Deep Hole Boring Tools with Modified Design

This paper presents the results of research work on the revised design of a deep hole boring tool. The study was divided into three stages: theoretical, experimental and operational. In the theoretical part, a 3D model of the actual boring bar was created, which was subjected to strength tests using...

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Main Authors: Norbert Kępczak, Grzegorz Bechciński, Radosław Rosik
Format: Article
Language:English
Published: MDPI AG 2024-03-01
Series:Materials
Subjects:
Online Access:https://www.mdpi.com/1996-1944/17/7/1551
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author Norbert Kępczak
Grzegorz Bechciński
Radosław Rosik
author_facet Norbert Kępczak
Grzegorz Bechciński
Radosław Rosik
author_sort Norbert Kępczak
collection DOAJ
description This paper presents the results of research work on the revised design of a deep hole boring tool. The study was divided into three stages: theoretical, experimental and operational. In the theoretical part, a 3D model of the actual boring bar was created, which was subjected to strength tests using the Finite Element Method (FEM), and then prototypes of new deep hole boring tools were made with structural modifications to the shank part of the tool. For the polymer concrete core of a shank, there was a 14.59% lower displacement, and for the rubber-doped polymer concrete (SBR—styrene butadiene rubber) core of a shank there was a 4.84% lower displacement in comparison to the original boring bar. In the experimental part of the study, the original boring bar and the prototypes were subjected to experimental modal analysis and static analysis tests to compare dynamic and static properties. In the operational part of the study, boring tests were carried out for various workpiece materials, during which the basic parameters of the surface geometric structure (SGS), such as roughness Ra and Rz, were studied. Despite the promising preliminary results of the theoretical and experimental studies, using the described modifications to the boring bar is not recommended.
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spelling doaj.art-8eb091101e9c41ec81aedfb35788f8bd2024-04-12T13:21:58ZengMDPI AGMaterials1996-19442024-03-01177155110.3390/ma17071551Operating Properties of Deep Hole Boring Tools with Modified DesignNorbert Kępczak0Grzegorz Bechciński1Radosław Rosik2Institute of Machine Tools and Production Engineering, Faculty of Mechanical Engineering, Lodz University of Technology, Stefanowskiego 1/15, 90-537 Lodz, PolandInstitute of Machine Tools and Production Engineering, Faculty of Mechanical Engineering, Lodz University of Technology, Stefanowskiego 1/15, 90-537 Lodz, PolandInstitute of Machine Tools and Production Engineering, Faculty of Mechanical Engineering, Lodz University of Technology, Stefanowskiego 1/15, 90-537 Lodz, PolandThis paper presents the results of research work on the revised design of a deep hole boring tool. The study was divided into three stages: theoretical, experimental and operational. In the theoretical part, a 3D model of the actual boring bar was created, which was subjected to strength tests using the Finite Element Method (FEM), and then prototypes of new deep hole boring tools were made with structural modifications to the shank part of the tool. For the polymer concrete core of a shank, there was a 14.59% lower displacement, and for the rubber-doped polymer concrete (SBR—styrene butadiene rubber) core of a shank there was a 4.84% lower displacement in comparison to the original boring bar. In the experimental part of the study, the original boring bar and the prototypes were subjected to experimental modal analysis and static analysis tests to compare dynamic and static properties. In the operational part of the study, boring tests were carried out for various workpiece materials, during which the basic parameters of the surface geometric structure (SGS), such as roughness Ra and Rz, were studied. Despite the promising preliminary results of the theoretical and experimental studies, using the described modifications to the boring bar is not recommended.https://www.mdpi.com/1996-1944/17/7/1551boring barmodal analysisfinite element methoddynamic propertiesstatic properties
spellingShingle Norbert Kępczak
Grzegorz Bechciński
Radosław Rosik
Operating Properties of Deep Hole Boring Tools with Modified Design
Materials
boring bar
modal analysis
finite element method
dynamic properties
static properties
title Operating Properties of Deep Hole Boring Tools with Modified Design
title_full Operating Properties of Deep Hole Boring Tools with Modified Design
title_fullStr Operating Properties of Deep Hole Boring Tools with Modified Design
title_full_unstemmed Operating Properties of Deep Hole Boring Tools with Modified Design
title_short Operating Properties of Deep Hole Boring Tools with Modified Design
title_sort operating properties of deep hole boring tools with modified design
topic boring bar
modal analysis
finite element method
dynamic properties
static properties
url https://www.mdpi.com/1996-1944/17/7/1551
work_keys_str_mv AT norbertkepczak operatingpropertiesofdeepholeboringtoolswithmodifieddesign
AT grzegorzbechcinski operatingpropertiesofdeepholeboringtoolswithmodifieddesign
AT radosławrosik operatingpropertiesofdeepholeboringtoolswithmodifieddesign