Water Vapor Cooling Effects in Turning by Finite Element Modeling

2011 ◽  
Vol 189-193 ◽  
pp. 1631-1634
Author(s):  
Fan Yang ◽  
Jian Long Huang
Keyword(s):  
Finite Element ◽  
Water Vapor ◽  
Geometric Modeling ◽  
Metal Cutting ◽  
Cutting Temperature ◽  
Fem Simulation ◽  
Cutting Process ◽  
Finite Element Software ◽  
Aisi 1045 ◽  
Cooling Effects

In order to correctly analyze the effect of water vapor cooling in metal cutting process, the turning process of AISI 1045 in the water vapor cooling condition is simulated using a commercial finite element software Deform-2D, including geometric modeling, meshing, boundary condition setting and material modeling, etc. The cutting temperature in different cooling conditions are then analyzed and discussed. The experimental validation showed a good agreement with simulation results. Thus, FEM simulation of cutting process can be considered as a promising and reliable tool for machining development within the near future.

Simulation Research on the Metal Cutting Process

2013 ◽  
Vol 641-642 ◽  
pp. 277-280
Author(s):  
Cheng Lei ◽  
Shou Ne Xiao ◽  
Shi Hui Luo
Keyword(s):  
Finite Element ◽  
Metal Cutting ◽  
Three Dimensional ◽  
Element Model ◽  
Rake Angle ◽  
Friction Model ◽  
Cutting Process ◽  
Simulation Research ◽  
Finite Element Software ◽  
Explicit Analysis

The three-dimensional explicit dynamic analysis of metal cutting process is done using the non- linear finite element software LS-DYNA. In the finite element model, 8- node 3D solid element based on one- point integration Lagrangian formulation is adopted, metal material is modeled with Johnson-Cook constitutive model, chip separation is simulated using the material failure criterion of Johnson and Cook proposed and combing the failure element deletion method, friction model of chip-tool contact interface is developed to simultaneously account for sticking and sliding situation. Through explicit analysis, rake angle, cutting depth, and cutting width on the shape of the chip influence are obtained.

scholarly journals Finite Element Modeling of the Effect of Tool Rake Angle on Cutting Force and Tool Temperature during High Speed Machining of AISI 1045 Steel

2014 ◽  
Vol 939 ◽  
pp. 194-200
Author(s):  
Shamsuddin Sulaiman ◽  
Mohd K.A. Ariffin ◽  
A. Roshan
Keyword(s):  
Finite Element ◽  
Cutting Force ◽  
High Speed ◽  
Metal Cutting ◽  
Rake Angle ◽  
Cutting Process ◽  
High Speed Machining ◽  
Tool Temperature ◽  
Aisi 1045 ◽  
Cutting Speeds

A finite element model (FEM) of an orthogonal metal-cutting process is used to study the influence of tool rake angle on the cutting force and tool temperature. The model involves Johnson-Cook material model and Coulomb’s friction law. A tool rake angle ranging from 0° to 20° and a cutting speed ranging from 300 to 600 m/min were considered in this simulation. The results of this simulation work are consistent optimum tool rake angle for high speed machining (HSM) of AISI 1045 medium carbon steel. It was observed that there was a suitable rake angle between 10° and 18° for cutting speeds of 300 and 433 m/min where cutting force and temperature were lowest. However, there was not optimum rake angle for cutting speeds of 550 and 600 m/min. This paper can contribute in optimization of cutting tool for metal cutting process.

The Analysis and Simulation for Improved Cutting Process Based on Finite Element Method (FEM) Analysis

2014 ◽  
Vol 556-562 ◽  
pp. 4343-4346
Author(s):  
Kai Wang ◽  
Wan Chen Sun ◽  
Feng Ming Nie ◽  
Qing Tang Wu
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Metal Cutting ◽  
Fem Analysis ◽  
Cutting Process ◽  
3D Finite Element ◽  
Finite Element Software ◽  
Modeling Procedure ◽  
Deform 3D ◽  
Element Method

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.

Finite Element Analysis of High Speed Cutting Tool

2012 ◽  
Vol 268-270 ◽  
pp. 496-499 ◽  
Author(s):  
Wei Fan ◽  
Xin Liu
Keyword(s):  
Finite Element ◽  
High Speed ◽  
Metal Cutting ◽  
Cutting Tool ◽  
Cutting Process ◽  
Machining Process ◽  
Tool Geometry ◽  
High Speed Machining ◽  
High Speed Cutting ◽  
Finite Element Software

The cutting principle of high speed machining is analyzed, and the key technology of building high speed cutting finite element simulation model is systemic explained. By simplifying high speed cutting process, using the fastest solution of nonlinear finite element software ADINA which is development in recent years to establish the three dimensional finite element model of high speed metal cutting, and to predict the cutting force of different cutting tool geometry parameter combination of high speed cutting process, the high speed cutting processing cutting tool analysis and processing parameter optimization analysis method are put forwarded, so as to provide a new tool for the research of high speed machining process and provide basis for the cutting tool choice during high-speed nc cutting process.

Predicting the High Speed Cutting Process of Titanium Alloy by Finite Element Method

2011 ◽  
Author(s):  
Xiangqin Zhang ◽  
Xueping Zhang ◽  
A. K. Srivastava
Keyword(s):  
Finite Element ◽  
Cutting Forces ◽  
High Speed ◽  
Cutting Temperature ◽  
Chip Morphology ◽  
Cutting Process ◽  
Fe Model ◽  
Dry Cutting ◽  
Friction Coefficients ◽  
Machining Conditions

To predict the cutting forces and cutting temperatures accurately in high speed dry cutting Ti-6Al-4V alloy, a Finite Element (FE) model is established based on ABAQUS. The tool-chip-work friction coefficients are calculated analytically using the measured cutting forces and chip morphology parameter obtained by conducting the orthogonal (2-D) machining tests. It reveals that the friction coefficients between tool-work are 3∼7 times larger than that between tool-chip, and the friction coefficients of tool-chip-work vary with feed rates. The analysis provides a better reference for the tool-work-chip friction coefficients than that given by literature empirically regardless of machining conditions. The FE model is capable of effectively simulating the high speed dry cutting process of Ti-6Al-4V alloy based on the modified Johnson-Cook model and tool-work-chip friction coefficients obtained analytically. The FE model is further validated in terms of predicted forces and the chip morphology. The predicted cutting force, thrust force and resultant force by the FE model agree well with the experimentally measured forces. The errors in terms of the predicted average value of chip pitch and the distance between chip valley and chip peak are smaller. The FE model further predicts the cutting temperature and residual stresses during high speed dry cutting of Ti-6Al-4V alloy. The maximum tool temperatures exist along the round tool edge, and the residual stress profiles along the machined surface are hook-shaped regardless of machining conditions.

A comprehensive experiment-based approach to generate stress field and slip lines in cutting process

2021 ◽  
pp. 1-18
Author(s):  
Zheng-Yan Yang ◽  
Xiao-Ming Zhang ◽  
Guang-Chao Nie ◽  
Dong Zhang ◽  
Han Ding
Keyword(s):  
Stress Field ◽  
Deformation Zone ◽  
Metal Cutting ◽  
Transfer Problem ◽  
Maximum Shear Stress ◽  
Cutting Temperature ◽  
Cutting Process ◽  
Slip Lines ◽  
Strain And Strain Rate ◽  
Main Deformation

Abstract This study proposes a comprehensive experiment-based method to determine stress field and slip lines in metal cutting process. The chip geometry and workpiece's strain and strain rate fields are determined using an in-situ imaging technique. The two-dimensional (2D) heat transfer problem for the steady-state cutting process is solved to derive the cutting temperature, and the flow stresses of work material in the main deformation zone are calculated based on the plasticity theory. Furthermore, the stress field is comprehensively determined to satisfy the stress equilibrium, friction law along the tool-chip interface, and traction-free boundary condition along the uncut chip surface. In addition, slip lines in the main deformation zone are derived according to the direction of maximum shear stress without the assumption of perfect rigid-plastic material. The proposed method is validated by comparing the cutting forces calculated based on the obtained stress field with the experimentally measurements.

The Simulation of Stem Cutting and Parameter Optimization for Power Station Valve

2013 ◽  
Vol 820 ◽  
pp. 151-156
Author(s):  
S.H. Zou ◽  
H.L. Wang ◽  
C.X. Yang ◽  
Y.P. Shi ◽  
J.H. Ge
Keyword(s):  
Finite Element ◽  
Finite Element Simulation ◽  
Cutting Temperature ◽  
Adaptive Meshing ◽  
Finite Element Software ◽  
Valve Stem ◽  
Element Simulation ◽  
Adaptive Meshing Technique ◽  
Proper Material ◽  
Material Constitutive Equation

We expound the finite element simulation and the key points of metal turning by the material properties of the stem in this paper, and select the proper material constitutive equation, then use the adaptive meshing technique, and then finite element modeling was carried out on the valve stem in the professional finite element software Advantedge FEM. The optimization scheme we designed of finite element simulation for the valve stem through the finite element software Advantedge FEM, and we research the influence of the amount of feed and speed cutting process about the cutting force and the cutting temperature.

Three-Dimensional FEM Simulation of the Ship-Bridge Collision

2013 ◽  
Vol 405-408 ◽  
pp. 3243-3247
Author(s):  
Wei Su ◽  
Ying Sun ◽  
Shi Qing Huang ◽  
Ren Huai Liu
Keyword(s):  
Finite Element ◽  
Boundary Conditions ◽  
Reference Values ◽  
Large Scale ◽  
Three Dimensional ◽  
Fem Simulation ◽  
Structural Safety ◽  
Fem Model ◽  
Finite Element Software

In this paper, the structural safety of the Niuwan Bridge subjected to vessel collision is investigated by the large-scale commercial finite element software ANSYS. A whole FEM model is built and a reasonable analysis and illustration for taking the value of vessel-collision forces is presented. Additionally, under the premise of reasonable simulation of the boundary conditions, the effects of the support abutments, the prestress and the carloads are considered. The analysis results have certain reference values for the anti-collision and reinforcement of bridges.

Temperature Field Numerical Analysis of Machining Process Based on the Finite Element Analysis

2014 ◽  
Vol 621 ◽  
pp. 611-616 ◽  
Author(s):  
Yan Juan Hu ◽  
Yao Wang ◽  
Zhan Li Wang
Keyword(s):  
Finite Element ◽  
Temperature Field ◽  
Metal Cutting ◽  
Orthogonal Cutting ◽  
Cutting Temperature ◽  
Cutting Parameters ◽  
Element Model ◽  
Machining Process ◽  
Element Analysis ◽  
Mechanical Coupling

In order to study the temperature field distribution in the process of machining, the finite element theory was used to establish the orthogonal cutting finite element model, and the key technologies were discussed simultaneously. By using ABAQUS software for cutting AISI1045 steel temperature field of numerical simulation, the conclusion about changing rule of cutting temperature field can be gotten. The results show that this method can efficiently simulate the distribution of temperature field of the workpiece, cutter and scraps, which is effected by thermo-mechanical coupling in metal work process. It provides the theory evidence for the intensive study of metal-cutting principle, optimizing cutting parameters and improving processing technic and so on.

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