Skip to main content

Lund University Publications

LUND UNIVERSITY LIBRARIES

FE analysis on the association between tool edge radius and thermal-mechanical load in machining Inconel 718

Liu, Yang LU ; Hrechuk, Andrii LU orcid ; Agmell, Mathias LU ; Ahadi, Aylin LU ; Stahl, Jan Eric LU and Zhou, Jinming LU (2021) 18th CIRP Conference on Modeling of Machining Operations (CMMO) In Procedia CIRP 102. p.91-96
Abstract

The cutting edge geometry has a significant influence on thermal-mechanical loads and the quality of machined surface in machining operations. In this study, a joint numerical and experimental investigation was conducted to study the effects of tool edge radius on process variables (tool temperatures, force components, stresses) and process dynamics in orthogonal machining Inconel 718. The numerical model was implemented based on Coupled Eulerian-Lagrangian (CEL) formulation, in which the tool is regarded as elastic, making it possible to realise the fluctuation of the tool tip. The results show that the temperature at the tool tip is more sensitive to the change of edge radius than the maximum temperature at the tool-chip interface.... (More)

The cutting edge geometry has a significant influence on thermal-mechanical loads and the quality of machined surface in machining operations. In this study, a joint numerical and experimental investigation was conducted to study the effects of tool edge radius on process variables (tool temperatures, force components, stresses) and process dynamics in orthogonal machining Inconel 718. The numerical model was implemented based on Coupled Eulerian-Lagrangian (CEL) formulation, in which the tool is regarded as elastic, making it possible to realise the fluctuation of the tool tip. The results show that the temperature at the tool tip is more sensitive to the change of edge radius than the maximum temperature at the tool-chip interface. The force components acting on rake face and flank face increase with increasing edge radius due to more negative effective rake angle and increasing ploughing depth respectively. Besides, the generated chip tends to be more segmented with increase of edge radius, causing severer fluctuation of forces and tool tip displacement. It was also found that a larger edge radius leads to a smaller uncut chip thickness and a poor surface roughness.

(Less)
Please use this url to cite or link to this publication:
author
; ; ; ; and
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
keywords
CEL, Edge radius, Inconel718, Process dynamic, Thermal-mechanical load
host publication
18th CIRP Conference on Modeling of Machining Operations (CMMO), Ljubljana, Slovenia, June 15-17, 2021
series title
Procedia CIRP
volume
102
pages
6 pages
publisher
Elsevier
conference name
18th CIRP Conference on Modeling of Machining Operations (CMMO)
conference location
Ljubljana, Slovenia
conference dates
2021-06-15 - 2021-06-17
external identifiers
  • scopus:85116903463
ISSN
2212-8271
DOI
10.1016/j.procir.2021.09.016
language
English
LU publication?
yes
additional info
Funding Information: Per-Ola Jonander for support in the preparation of the experiment during the investigation. One of the authors (Y. Liu) appreciates the financial support by China Scholarship Council (No. 201706130144). Publisher Copyright: © 2021 Elsevier B.V.. All rights reserved.
id
3dbb09d9-c0b6-44b0-83dd-cc046b3af027
date added to LUP
2021-10-22 13:05:52
date last changed
2024-03-08 20:16:16
@inproceedings{3dbb09d9-c0b6-44b0-83dd-cc046b3af027,
  abstract     = {{<p>The cutting edge geometry has a significant influence on thermal-mechanical loads and the quality of machined surface in machining operations. In this study, a joint numerical and experimental investigation was conducted to study the effects of tool edge radius on process variables (tool temperatures, force components, stresses) and process dynamics in orthogonal machining Inconel 718. The numerical model was implemented based on Coupled Eulerian-Lagrangian (CEL) formulation, in which the tool is regarded as elastic, making it possible to realise the fluctuation of the tool tip. The results show that the temperature at the tool tip is more sensitive to the change of edge radius than the maximum temperature at the tool-chip interface. The force components acting on rake face and flank face increase with increasing edge radius due to more negative effective rake angle and increasing ploughing depth respectively. Besides, the generated chip tends to be more segmented with increase of edge radius, causing severer fluctuation of forces and tool tip displacement. It was also found that a larger edge radius leads to a smaller uncut chip thickness and a poor surface roughness.</p>}},
  author       = {{Liu, Yang and Hrechuk, Andrii and Agmell, Mathias and Ahadi, Aylin and Stahl, Jan Eric and Zhou, Jinming}},
  booktitle    = {{18th CIRP Conference on Modeling of Machining Operations (CMMO), Ljubljana, Slovenia, June 15-17, 2021}},
  issn         = {{2212-8271}},
  keywords     = {{CEL; Edge radius; Inconel718; Process dynamic; Thermal-mechanical load}},
  language     = {{eng}},
  pages        = {{91--96}},
  publisher    = {{Elsevier}},
  series       = {{Procedia CIRP}},
  title        = {{FE analysis on the association between tool edge radius and thermal-mechanical load in machining Inconel 718}},
  url          = {{http://dx.doi.org/10.1016/j.procir.2021.09.016}},
  doi          = {{10.1016/j.procir.2021.09.016}},
  volume       = {{102}},
  year         = {{2021}},
}