Numerical simulation of single point diamond turning

A coupled thermo-mechanical plane-strain large-deformation orthogonal cutting finite element model is presented in this thesis by using the ABAQUS finite element code to simulate the cutting mechanics of OFHC Copper in Single-Point Diamond Turning (SPDT). The simulations concern the study of stress...

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Main Author:	Teoh, Yeong Chia
Format:	Undergraduates Project Papers
Language:	English
Published:	2009
Subjects:	TJ Mechanical engineering and machinery
Online Access:	http://umpir.ump.edu.my/id/eprint/1077/ http://umpir.ump.edu.my/id/eprint/1077/1/Teoh%2C_Yeong_Chia.pdf

id	ump-1077
recordtype	eprints
spelling	ump-10772015-03-03T07:48:40Z http://umpir.ump.edu.my/id/eprint/1077/ Numerical simulation of single point diamond turning Teoh, Yeong Chia TJ Mechanical engineering and machinery A coupled thermo-mechanical plane-strain large-deformation orthogonal cutting finite element model is presented in this thesis by using the ABAQUS finite element code to simulate the cutting mechanics of OFHC Copper in Single-Point Diamond Turning (SPDT). The simulations concern the study of stress and strain imparted in the workpiece during metal cutting process. Round edge cutting tool is used in this study since the tool edge radius has comparable size to the uncut chip thickness in SPDT. The tool is treated as perfectly rigid body where the cutting conditions and boundary conditions are prescribed at a reference point. Workpiece material is modeled as thermo-visco-plastic material that is considered dependent upon the plastic strain, the plastic strain rate and temperature variations. The flow stress calculation is expressed as the form of Johnson–Cook’s constitutive equation that take into account the effect of the large strain, strain-rate and temperature associated with cutting on the material properties. To reduce computational time and cost, the workpiece is discretized by nonuniform mesh. Mesh distortion problem due to large deformation in front of tool tip during cutting simulation is solved using pure deformation technique. A more realistic and physically based chip formation can be achieved by using this method. Chip formation yield from the finite element method simulation of OFHC Copper is observed and it revealed good chip morphology that agrees well with the previous studies. The model is validated with the published report based on Von Mises Stress and found to be in good agreement also. This model is useful to economically analyze SPDT and thus to meet the need for improve productivity and quality of machining operations in SPDT. 2009-11 Undergraduates Project Papers NonPeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/1077/1/Teoh%2C_Yeong_Chia.pdf Teoh, Yeong Chia (2009) Numerical simulation of single point diamond turning. Faculty of Mechanical Engineering, Universiti Malaysia Pahang.
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Malaysia Pahang
building	UMP Institutional Repository
collection	Online Access
language	English
topic	TJ Mechanical engineering and machinery
spellingShingle	TJ Mechanical engineering and machinery Teoh, Yeong Chia Numerical simulation of single point diamond turning
description	A coupled thermo-mechanical plane-strain large-deformation orthogonal cutting finite element model is presented in this thesis by using the ABAQUS finite element code to simulate the cutting mechanics of OFHC Copper in Single-Point Diamond Turning (SPDT). The simulations concern the study of stress and strain imparted in the workpiece during metal cutting process. Round edge cutting tool is used in this study since the tool edge radius has comparable size to the uncut chip thickness in SPDT. The tool is treated as perfectly rigid body where the cutting conditions and boundary conditions are prescribed at a reference point. Workpiece material is modeled as thermo-visco-plastic material that is considered dependent upon the plastic strain, the plastic strain rate and temperature variations. The flow stress calculation is expressed as the form of Johnson–Cook’s constitutive equation that take into account the effect of the large strain, strain-rate and temperature associated with cutting on the material properties. To reduce computational time and cost, the workpiece is discretized by nonuniform mesh. Mesh distortion problem due to large deformation in front of tool tip during cutting simulation is solved using pure deformation technique. A more realistic and physically based chip formation can be achieved by using this method. Chip formation yield from the finite element method simulation of OFHC Copper is observed and it revealed good chip morphology that agrees well with the previous studies. The model is validated with the published report based on Von Mises Stress and found to be in good agreement also. This model is useful to economically analyze SPDT and thus to meet the need for improve productivity and quality of machining operations in SPDT.
format	Undergraduates Project Papers
author	Teoh, Yeong Chia
author_facet	Teoh, Yeong Chia
author_sort	Teoh, Yeong Chia
title	Numerical simulation of single point diamond turning
title_short	Numerical simulation of single point diamond turning
title_full	Numerical simulation of single point diamond turning
title_fullStr	Numerical simulation of single point diamond turning
title_full_unstemmed	Numerical simulation of single point diamond turning
title_sort	numerical simulation of single point diamond turning
publishDate	2009
url	http://umpir.ump.edu.my/id/eprint/1077/ http://umpir.ump.edu.my/id/eprint/1077/1/Teoh%2C_Yeong_Chia.pdf
first_indexed	2023-09-18T21:53:54Z
last_indexed	2023-09-18T21:53:54Z
_version_	1777413950643634176

Numerical simulation of single point diamond turning

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