Machinability of ZTC4 Titanium Alloy Analysis Using Finite Element Simulation and Milling Experiment

2011 ◽  
Vol 474-476 ◽  
pp. 633-638 ◽  
Author(s):  
Chang Yi Liu ◽  
Zhi An Tang ◽  
Sheng Yang ◽  
Wen Wen Liu ◽  
Yuan Dong Lu
Keyword(s):  
Finite Element ◽  
Titanium Alloy ◽  
Fem Simulation ◽  
Milling Process ◽  
Machining Process ◽  
Three Dimension ◽  
3D Fem ◽  
Chip Flow ◽  
Clearance Face ◽  
Elastic And Plastic Deformation

In this paper Finite element methods (FEM) and cutting experiment were used to investigate the machinability of titanium alloy ZTC4 (cast Ti6Al4V). Machinability was evaluated as cutting force, temperature, and surface roughness. Two-dimension (2D) and three-dimension (3D) machining process FEM models were established. Material constitutive applied Johnson-Cook model synthesizing elastic and plastic deformation. Chip separated criteria adopted arbitrary Lagrangian Euler (ALE) algorithm. Heat generation source included the rake face chip flow under conditions of seizure and chip/tool friction, clearance face tool/workpiece friction. 3D discrete milling tool was modeled and the milling process was simulated. The ZTC4 milling experiments were designed and carried out with same cutting conditions of the 3D FEM simulation. The results of FEM simulation and the experiment were compared and analysed. The influences of the machining variables to the machinability of ZTC4 were discussed.

Finite Element Technique for Predicting Stress Distribution in Milling TC4 Titanium Alloy

2014 ◽  
Vol 623 ◽  
pp. 121-124
Author(s):  
Bin Li ◽  
Shu Ling Zhao
Keyword(s):  
Finite Element ◽  
Titanium Alloy ◽  
Material Flow ◽  
Cutting Speed ◽  
Milling Process ◽  
Machining Process ◽  
Engineering Technology ◽  
Tc4 Titanium Alloy ◽  
Metal Machining ◽  
Element Technique

Cutting forces modeling is the basis to understand, simulate milling process and further to control milling process parameters for obtaining higher precision workpieces. With the development of engineering technology, FEM can be used to simulate metal machining process and gain better understanding of material flow within dies, so as to optimize tooling to eliminate tears, laps and other forging defects. In this paper, the calculated cutting force increases approximately logarithmically with the cutting speed, as should be expected from the logarithmic rate dependence.

FEM Simulation of the Effects of Residual Stress on Deformation of Gyroscope Frame

2010 ◽  
Vol 439-440 ◽  
pp. 838-841
Author(s):  
Jun Zhan ◽  
Gui Min Chen ◽  
Xiao Fang Liu ◽  
Qing Jie Liu ◽  
Qian Zhang
Keyword(s):  
Finite Element Method ◽  
Residual Stress ◽  
Finite Element ◽  
Stress Distribution ◽  
Tensile Stress ◽  
Large Deformation ◽  
Deformation Process ◽  
Fem Simulation ◽  
Machining Process ◽  
The Core

Gyroscope is the core of an inertia system and made by machining process. Machining process imports large residual stress. The residual stress will be released and induces large deformation of gyroscope frame. In this paper, the effects of residual stress on deformation of gyroscope frame were simulated by finite element method. Different stress distribution leads different deformation. Compressive stress can make sample long and tensile stress make sample short. The stress released in deformation process which reduced about 90%.

Finite Element Analysis of a Frictionally Damped Slender Endmill

2012 ◽  
Author(s):  
Reza Madoliat ◽  
Sajad Hayati
Keyword(s):  
Finite Element ◽  
End Milling ◽  
Friction Stress ◽  
Milling Process ◽  
Machining Process ◽  
Depth Of Cut ◽  
Parameter Study ◽  
Bending Vibration ◽  
Element Analysis ◽  
Tool Axis

This paper primarily deals with suppression of chatter in end-milling process. Improving the damping is one way to achieve higher stability for machining process. For this purpose a damper is proposed that is composed of a core and a multi fingered hollow cylinder which are shrink fitted in each other and their combination is shrink fitted inside an axial hole along the tool axis. This structure causes a resisting friction stress during bending vibration. Using FEA-ANSYS the structure is simulated. Then a parameter study is carried out where the frequency response and the depth of cut are calculated and tabulated to obtain the most effective configuration. The optimal configuration of tool is fabricated and finite element results are validated using modal test. The results show a high improvement in performance of the tool with proposed damper. Good agreement between experiments and modeling is obtained.

scholarly journals 3D FEM simulation of helical milling hole process for titanium alloy Ti-6Al-4V

2015 ◽  
Vol 81 (9-12) ◽  
pp. 1733-1742 ◽  
Author(s):  
Chunhui Ji ◽  
Yonghang Li ◽  
Xuda Qin ◽  
Qing Zhao ◽  
Dan Sun ◽  
...  
Keyword(s):  
Titanium Alloy ◽  
Fem Simulation ◽  
Helical Milling ◽  
3D Fem ◽  
Helical Milling Hole

FEM Analysis for the Influence of Manufacturing Process Defects on Dynamic Behavior of Thin Chromium Microbeam

2014 ◽  
Vol 548-549 ◽  
pp. 958-962 ◽  
Author(s):  
H. Bourouina ◽  
R. Yahiaoui ◽  
B.Y. Majlis ◽  
A. Hassein-Bey ◽  
M.E.A. Benamar ◽  
...  
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Dynamic Behavior ◽  
Manufacturing Process ◽  
Fem Simulation ◽  
Fem Analysis ◽  
Analytical Models ◽  
3D Fem ◽  
Thin Chromium ◽  
Technological Defects

This paper identifies and investigates the influence of technological defects of manufacturing process on the dynamic behavior of thin chromium microbeam. The analytical models will be analyzed and corrected using finite element method (FEM) to determine their validity under influence of technological defects. A semi-analytical model will be proposed for the extraction of corrective factors from 3D FEM simulation of dynamic behavior of microbeam. Final results indicate that the correction of technological defects is very significant for Cr microbeam 80x2x0.95μm3. In other hand, the corrected value of Young’s modulus is very close to the experimental results and it is about 279.1GPa.

Cutting forces analysis of micro-milling process on Inconel 718 – a finite element approach

2020 ◽  
Vol 11 (02) ◽  
pp. 2050011
Author(s):  
Padmaja Tripathy ◽  
Kalipada Maity
Keyword(s):  
Finite Element ◽  
Cutting Forces ◽  
Inconel 718 ◽  
Cutting Speed ◽  
Fem Analysis ◽  
Milling Process ◽  
Machining Process ◽  
Micro Milling ◽  
Depth Of Cut ◽  
Machining Parameters

This paper presents a modeling and simulation of micro-milling process with finite element modeling (FEM) analysis to predict cutting forces. The micro-milling of Inconel 718 is conducted using high-speed steel (HSS) micro-end mill cutter of 1mm diameter. The machining parameters considered for simulation are feed rate, cutting speed and depth of cut which are varied at three levels. The FEM analysis of machining process is divided into three parts, i.e., pre-processer, simulation and post-processor. In pre-processor, the input data are provided for simulation. The machining process is further simulated with the pre-processor data. For data extraction and viewing the simulated results, post-processor is used. A set of experiments are conducted for validation of simulated process. The simulated and experimental results are compared and the results are found to be having a good agreement.

FEM Simulation Technologies of Laser Cutting Wood Board Based on ANSYS

2010 ◽  
Vol 113-116 ◽  
pp. 1629-1631
Author(s):  
Jian Ying Shen ◽  
Yun Zhao
Keyword(s):  
Finite Element ◽  
Laser Cutting ◽  
Fem Simulation ◽  
Finite Element Method Simulation ◽  
Machining Process ◽  
Laser Source ◽  
Optimal Process ◽  
Machining Quality ◽  
Simulation Techniques ◽  
Finite Element Meshing

Laser cutting is an important application field of laser machining technology. It can improve machining quality and save time by using a computer to simulate the machining process to obtain the optimal process parameters. In the paper, the FEM simulation techniques for laser cutting are discussed by taking wood as an example and using the FEM software ANSYS as a simulation tool. The technologies include solid modeling, finite element meshing, loading of the moving laser source and secondary developing of APDL language. laser cutting; finite element method; simulation

The Finite Element Simulation of Milling Based on Orthogonal Cutting Model

2012 ◽  
Vol 499 ◽  
pp. 208-212
Author(s):  
Ai Hua Gao ◽  
Fu Rong Wang ◽  
Jian Xin Zhang
Keyword(s):  
Finite Element ◽  
Service Life ◽  
Finite Element Simulation ◽  
Metal Cutting ◽  
Orthogonal Cutting ◽  
Milling Process ◽  
Machining Process ◽  
Element Simulation ◽  
Basic Parameters ◽  
Cutting Model

The paper make the service life of relieving formed milling cutter as the optimization objective, proceed the simulation study on the mechanical degree of cutter, cutting data. The concrete method is that the orthogonal milling model is established to simulate the simulation milling process, some basic parameters which are obtained in the machining process are analyzed and discussed. The results indicate that the finite element simulation of the metal cutting processing can analyze quantitatively some physical properties, such as the cutting force, stress, strain and so on, the traditional way of qualitative analysis is changed. The state of machining is in favour of grasping in the theory, the theory and technology are provided to establish the proper processing technology strategy.

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