FLOW STRESS DATA FOR FINITE ELEMENT SIMULATION IN METAL CUTTING: A PROGRESS REPORT ON MADAMS

2005 ◽  
Vol 9 (2) ◽  
pp. 271-288 ◽  
Author(s):  
Partchapol Sartkulvanich ◽  
Taylan Altan ◽  
Joerg Soehner
Keyword(s):  
Finite Element ◽  
Flow Stress ◽  
Finite Element Simulation ◽  
Metal Cutting ◽  
Progress Report ◽  
Element Simulation ◽  
Flow Stress Data

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.

Comparison of Different Extrapolation Models for Materials in the Closed-Extruding Fine Blanking Simulation

2018 ◽  
Vol 1145 ◽  
pp. 123-128
Author(s):  
Ming Deng ◽  
Jiang Po Niu ◽  
Yi Long Ma ◽  
Lin Lv
Keyword(s):  
Finite Element ◽  
Flow Stress ◽  
Finite Element Simulation ◽  
Great Influence ◽  
Stress Model ◽  
Forming Process ◽  
Fine Blanking ◽  
Finite Element Software ◽  
Element Simulation ◽  
Flow Stress Model

The selection of the flow stress model of materials has a great influence on the plastic forming simulation of metal. For closed extrusion fine blanking, selecting the accurate and appropriate material flow stress model can make the finite element simulation closer to the real situation, and the simulation data is more reliable. In order to solve the accuracy problem of finite element simulation closed-extruding fine blanking, 5 types of flow stress fitting curve equations were obtained based on the data of sheet metal tensile test. With the secondary development of finite element software Deform-2D, the circular piece of closed-extruding fine blanking forming process was simulated, whose diameter is 14 mm and thickness is 30 mm. The simulation results of different rheological models were compared after physical experiment being carried out.The results show that Ludwik extrapolation rheological model is suitable for finite element simulation of closed-extruding fine blanking technology, which effectively improves closed-extruding fine blanking simulation accuracy. Lay the foundation for the application of closed-extrusion fine blanking in industry.

3D Parametric Modeling of Numerical Simulation on Oblique Cutting

2009 ◽  
Vol 16-19 ◽  
pp. 399-403
Author(s):  
Jing Sheng ◽  
Li Ping Yao
Keyword(s):  
Finite Element ◽  
Finite Element Simulation ◽  
Metal Cutting ◽  
Parametric Modeling ◽  
Oblique Cutting ◽  
Complex Process ◽  
Element Simulation ◽  
Metal Machining ◽  
Key Techniques ◽  
Access Data

The finite element simulation of metal machining is a complex process. It is essential to develop a system to construct a model of simulation so as to obtain simulation data conveniently and rapidly. The paper detailed the parametric modeling. The key techniques of 3D modeling with MSC.Marc software and the parametric modeling procedure of metal oblique cutting process were presented in the paper. The modeling rule based on the procedure file was investigated. The interface of the system, designed using C++ Builder, could access data, which includes the geometrical angles and dimensions of a tool, the sizes of a workpiece, the relative position between the tool and the workpiece, their properties and cutting conditions, etc.. The procedure file, which is able to model in the MSC.Marc environment, was created by the program automatically. Calling the file, the system can finish the parametrical modeling of the finite element simulation. Then an example was given and the simulation model was also run. It was proved that the parametric modeling is an effective way for metal cutting simulation.

Finite Element Simulation and Experimental Study on Micro-Milling Cobalt-Based Alloy

2015 ◽  
Vol 667 ◽  
pp. 326-331
Author(s):  
Peng Zhang ◽  
Yun Long Du ◽  
Bo Wang ◽  
De Bin Shan
Keyword(s):  
Experimental Study ◽  
Finite Element ◽  
Cutting Force ◽  
Finite Element Simulation ◽  
Feed Rate ◽  
Metal Cutting ◽  
Micro Milling ◽  
Micro Cutting ◽  
Element Simulation ◽  
Macro Scale

Elgiloy is a cobalt-based alloy with excellent physical and chemical performance, which is used widely in medical and industrial applications. In this paper, the professional finite element analysis software for metal cutting is used to establish the finite element simulation model of micro cutting this kind of cobalt-based alloy, and the effect of feed rate, which is considered as the most important processing parameter, on the cutting force of micro cutting Elgiloy is analyzed. The cutting force measurement system based on ultra-precision micro milling machine tool is established for experimental study on the cutting force of micro milling Elgiloy by using ultra-fine gain tungsten carbide micro milling tool. The cutting force is measured with different feed rate parameters and the influence of the parameters on the cutting force is analyzed. The simulation and experimental results show that the trends observed at the micro scale are the same as the trends for machining at the macro scale, which implies that the Elgiloy material behaves in a similar manner at both length scales.

scholarly journals Research on Milling Tool Wears Prediction based on 3-D Finite Element Process Simulation

2020 ◽  
Author(s):  
Zhibo LIU ◽  
Caixu YUE ◽  
Xiaochen LI ◽  
Xianli LIU ◽  
Steven Y. Liang ◽  
...  
Keyword(s):  
Finite Element ◽  
Tool Wear ◽  
Finite Element Simulation ◽  
Tool Life ◽  
Metal Cutting ◽  
End Milling ◽  
Simulation Software ◽  
Wear Model ◽  
Empirical Prediction ◽  
Element Simulation

In the process of metal cutting, the anti-wear performance of the tool determines the life of the tool and affects the surface quality of the workpiece. The finite element simulation method can directly show the tool wear state and morphology, but due to the limitations of the simulation time and complex boundary conditions, it has not been commonly used in tool life prediction. Based on this, a tool wear model was established on the platform of a finite element simulation software for the cutting process of titanium alloy TC4 by end milling. The key technique is to embed different types of tool wear models into the finite element model in combination with the consequent development technology. The effectiveness of the tool wear model is validated by comparing the experimental results with the simulation results. At the same time, in order to quickly predict the tool life, an empirical prediction formula of tool wear was established, and the change course of tool wear under time change was obtained.

scholarly journals Research on Tool Wear Based on 3D FEM Simulation for Milling Process

2020 ◽  
Vol 4 (4) ◽  
pp. 121
Author(s):  
Zhibo Liu ◽  
Caixu Yue ◽  
Xiaochen Li ◽  
Xianli Liu ◽  
Steven Y. Liang ◽  
...  
Keyword(s):  
Finite Element ◽  
Tool Wear ◽  
Finite Element Simulation ◽  
Tool Life ◽  
Metal Cutting ◽  
End Milling ◽  
Simulation Software ◽  
3D Fem ◽  
Wear Model ◽  
Element Simulation

In the process of metal cutting, the anti-wear performance of the tool determines the life of the tool and affects the surface quality of the workpiece. The finite element simulation method can directly show the tool wear state and morphology, but due to the limitations of the simulation time and complex boundary conditions, it has not been commonly used in tool life prediction. Based on this, a tool wear model was established on the platform of a finite element simulation software for the cutting process of titanium alloy TC4 by end milling. The key technique is to embed different types of tool wear models into the finite element model in combination with the consequent development technology. The effectiveness of the tool wear model was validated by comparing the experimental results with the simulation results. At the same time, in order to quickly predict the tool life, an empirical prediction formula of tool wear was established, and the change course of tool wear under time change was obtained.

Finite Element Simulation for Titanium Alloy Cutting by Bio-Mimetic Wear-Resistant Cutter

2014 ◽  
Vol 926-930 ◽  
pp. 362-365
Author(s):  
Gui Qiang Liang ◽  
Li Gong Cui ◽  
Fang Shao
Keyword(s):  
Finite Element ◽  
Finite Element Simulation ◽  
Metal Cutting ◽  
Cutting Temperature ◽  
Simulation Method ◽  
Machining Process ◽  
Basic Principles ◽  
Wear Resistant ◽  
Element Simulation ◽  
The Relationship

Bionics research finds that the non-smooth morphology surfaces of some typical animals can reduce the forward resistances in the movement process. We can imitate these characteristics to reduce the machine tool wear during the machining process, which greatly promotes the machining and production procedure. Using the finite element simulation method, the effect of TC4 bio-mimetic wear-resistant cutter on cutting force, cutting temperature and micro-process were researched in-depth. The results verified the effect of bionic wear-resistant tool on the anti-friction process of metal cutting. On the other hand, we discussed the relationship between the effect and parameter of the tool surface non-smooth morphology is not smooth. Also, this paper revealed the basic principles of bionic wear-resisting tool anti-friction, which provides guidance for the selection of non-smooth morphology.

Sign in / Sign up

Export Citation Format

Share Document