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A hybrid model for force prediction in orthogonal cutting with chamfered tools considering size and edge effect

Weng, Jian LU ; Zhuang, Kejia ; Zhou, Jinming LU and Ding, Han (2020) In International Journal of Advanced Manufacturing Technology 110(5-6). p.1367-1384
Abstract

Researches on the modeling of machining difficult-to-cut metals are important for optimization of the processing parameters, in which the force modeling is essential due to its significant influence on the performance of tools and the quality of parts. A semi-analytical method for force prediction in orthogonal cutting with chamfered tools considering both edge and size effect is proposed in this paper. The plastic deformation in the shear band was investigated using a parallel shear zone model and unequal division shear zone model. The influence of size effect on cutting force was discussed and a simplified expression of improvement factor is introduced to describe the sharp increase of shear stress under the condition of low feed... (More)

Researches on the modeling of machining difficult-to-cut metals are important for optimization of the processing parameters, in which the force modeling is essential due to its significant influence on the performance of tools and the quality of parts. A semi-analytical method for force prediction in orthogonal cutting with chamfered tools considering both edge and size effect is proposed in this paper. The plastic deformation in the shear band was investigated using a parallel shear zone model and unequal division shear zone model. The influence of size effect on cutting force was discussed and a simplified expression of improvement factor is introduced to describe the sharp increase of shear stress under the condition of low feed rate. Simulations of orthogonal cutting with different chamfer lengths are conducted to analyze the variation of cutting force with respect to chamfer length, which reveals that the influence of chamfer length on cutting force is determined by the ratio of chamfer length to uncut chip thickness. A modified function considering the trend of material flow condition is proposed, which treats the total cutting force as a combination of cutting forces caused by chamfered edge and rake face. The calibration of constants in the proposed method is achieved using particle swarm optimization (PSO), a meta-heuristic algorithm for complicated non-linear models. The experiments show that the method works well on both fitting and predicting modules in orthogonal cutting of AISI 304 using cemented carbide tools with 15° chamfer angle or 25° chamfer angle.

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author
; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Force modeling, Orthogonal cutting, PSO, Size effect
in
International Journal of Advanced Manufacturing Technology
volume
110
issue
5-6
pages
18 pages
publisher
Springer
external identifiers
  • scopus:85089786381
ISSN
0268-3768
DOI
10.1007/s00170-020-05943-1
language
English
LU publication?
yes
id
176a3c09-8291-47b6-bed0-f9a0f7559a30
date added to LUP
2020-09-07 14:31:14
date last changed
2020-09-10 09:27:21
@article{176a3c09-8291-47b6-bed0-f9a0f7559a30,
  abstract     = {<p>Researches on the modeling of machining difficult-to-cut metals are important for optimization of the processing parameters, in which the force modeling is essential due to its significant influence on the performance of tools and the quality of parts. A semi-analytical method for force prediction in orthogonal cutting with chamfered tools considering both edge and size effect is proposed in this paper. The plastic deformation in the shear band was investigated using a parallel shear zone model and unequal division shear zone model. The influence of size effect on cutting force was discussed and a simplified expression of improvement factor is introduced to describe the sharp increase of shear stress under the condition of low feed rate. Simulations of orthogonal cutting with different chamfer lengths are conducted to analyze the variation of cutting force with respect to chamfer length, which reveals that the influence of chamfer length on cutting force is determined by the ratio of chamfer length to uncut chip thickness. A modified function considering the trend of material flow condition is proposed, which treats the total cutting force as a combination of cutting forces caused by chamfered edge and rake face. The calibration of constants in the proposed method is achieved using particle swarm optimization (PSO), a meta-heuristic algorithm for complicated non-linear models. The experiments show that the method works well on both fitting and predicting modules in orthogonal cutting of AISI 304 using cemented carbide tools with 15° chamfer angle or 25° chamfer angle.</p>},
  author       = {Weng, Jian and Zhuang, Kejia and Zhou, Jinming and Ding, Han},
  issn         = {0268-3768},
  language     = {eng},
  month        = {09},
  number       = {5-6},
  pages        = {1367--1384},
  publisher    = {Springer},
  series       = {International Journal of Advanced Manufacturing Technology},
  title        = {A hybrid model for force prediction in orthogonal cutting with chamfered tools considering size and edge effect},
  url          = {http://dx.doi.org/10.1007/s00170-020-05943-1},
  doi          = {10.1007/s00170-020-05943-1},
  volume       = {110},
  year         = {2020},
}