scholarly journals Heat partition effect on cutting tool morphology in orthogonal metal cutting using finite element method

Mechanika ◽  
2019 ◽  
Vol 25 (4) ◽  
pp. 326-334
Author(s):  
Kamuran Kamil YEŞİLKAYA ◽  
Kemal YAMAN

It is widely accepted that heat partition and temperature distribution for metal cutting process have a significant effect on the morphological features of the cutting tool. Tool life and cutting accuracy are considerably affected by temperature distribution and heat transfer mechanisms on the tool. When a finite elements model is accurately generated, an understanding of heat partition into the cutting tool without performing experiments can be gained. This study has been completed with the use of uncoated and coated tools in order to predetermine heat partition value entering the cutting tool. In terms of coated tools, tool coating was investigated to assess its effects on heat partition. Finite Element Method was mainly used in combination with the previously generated experimental data in literature. Three-dimensional uncoated and coated models were created and made compatible with finite element modeling software to be able to perform thermal analyses of the cutting process. Finite element transient and steady-state temperature values were calculated and hence the heat intensity value for the cutting tool was determined.

2013 ◽  
Vol 712-715 ◽  
pp. 683-687
Author(s):  
Chun Lin Wang ◽  
Chong Hai Xu ◽  
Xiu Guo Xu

The introduction and application of common finite element method (FEM) about the modern metal cutting theory research was stated emphatically. Graded self-lubricating ceramic tool materials was briefly introduced, and problems existed about simulating the metal cutting process using FEM are pointed out and discussed in this study.


2013 ◽  
Vol 710 ◽  
pp. 223-227
Author(s):  
Yan Cao ◽  
Hua Chen ◽  
Hai Xia Zhao

Based on the study on metal cutting theories and rigid-plastic finite element method, taking Sweden SECO lathe tool MDT as the researching object, the cutting force in cutting process is analyzed after a cutting process simulation model is constructed using finite element method. Different simulation parameters and cutting parameters are used to carry out analyses time after time. The dynamic changing curves of the cutting force in cutting process are obtained. Through the comparison of the cutting force in different cutting conditions, the influence of cutting parameters on the cutting force is summarized. The research can provide useful data for improvement of metal cutting technology and tool cutting performance.


2014 ◽  
Vol 556-562 ◽  
pp. 4343-4346
Author(s):  
Kai Wang ◽  
Wan Chen Sun ◽  
Feng Ming Nie ◽  
Qing Tang Wu

The paper proposed the practical metal cutting process using FEM to simulate the traditional cutting process, the simulation and the analysis of the results are based on the support of DEFORM-3D finite element software, and the characteristic between Galerkin Algorithm and FEM analysis is also analyzed. Then the paper processed the modeling procedure for FEM using Lagrange and Euler algorithm, the simulation result is then compared to traditional ones and proved to be more efficient and with higher accuracy.


Materials ◽  
2020 ◽  
Vol 13 (23) ◽  
pp. 5404
Author(s):  
Jarosław Kaczmarczyk

This paper modelled the cutting process of a bundle consisted of ultra-thin cold-rolled steel sheets using a guillotine. The geometry of a cutting tool with given dimensions was assumed. A bundle of sheets being cut was modelled as deformable, the cutting tool was rigid, and the finite element method along with computer system LS-DYNA was employed. Numerical simulations of the complex state of stress and of the corresponding complex state of strain were carried out. Cutting processes belong to fast changing physical phenomena, and therefore, highly nonlinear dynamical algorithms were applied in order to solve this particular problem. Experimental investigations were also conducted by means of the scanning electron microscopy. It was found that the fracture region consisted of two distinct zones: brittle and ductile separated from each other by the interfacial transition. Morphological features of the brittle, ductile, and the transition regions were identified. The ductile and brittle zones were separated at the depth of ca. 1/5 thickness of the cut steel sheet. Finally, the numerical results obtained by usage of the finite element method as well as experimental ones in the form of microscopic images were compared, showing quite good agreement.


PAMM ◽  
2021 ◽  
Vol 20 (1) ◽  
Author(s):  
Xialong Ye ◽  
Juan Manuel Rodríguez Prieto ◽  
Ralf Müller

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