Research on Temperature Field about Cutting Area in Plunge Milling Ti Alloy Based on Finite Element

2010 ◽  
Vol 102-104 ◽  
pp. 630-633
Author(s):  
Xu Da Qin ◽  
Wei Cheng Liu ◽  
Hao Jia ◽  
Xiao Lai Ji
Keyword(s):  
Thermal Conductivity ◽  
Finite Element ◽  
Temperature Field ◽  
Thermal Conductivity Coefficient ◽  
Cutting Speed ◽  
Cutting Parameters ◽  
Ti Alloy ◽  
Plunge Milling ◽  
Finite Element Software

Because of the small thermal conductivity coefficient of Ti alloy, the heat cannot disperse timely and accumulate seriously when plunge milling Ti alloy. If the cutting parameters can not be controlled well, the phenomenon of sticking will happen easily. According to the simulation and analysis of temperature field by using finite element software ABAQUS, the influence on cutting speed and feed for the Distributing of Temperature Field about Cutting Area in Plunge Milling Ti Alloy is acquired.

Factors Analysis on the Temperature Field of PC Box-Girder Bridge

2012 ◽  
Vol 178-181 ◽  
pp. 2006-2012
Author(s):  
Yu Dong Nie ◽  
Wei Zhang ◽  
Zong Lin Wang
Keyword(s):  
Thermal Conductivity ◽  
Finite Element ◽  
Temperature Field ◽  
Solar Radiation ◽  
Box Girder ◽  
Finite Element Software ◽  
Plate Length ◽  
Factors Analysis ◽  
Free Air ◽  
Girder Bridge

Based on the Nenjiang Bridge located in the Qi-Gan expressway and using the finite element software ANSYS, we analysis the influences of solar radiation, free air temperature, inside temperature, wind speed, thermal conductivity of concrete, section height, flange plate length and bridge pavement on the temperature field of PC box-girder in this paper. And the solar radiation, thermal conductivity of concrete and bridge pavement is presented as the leading factors for the temperature field of PC box-girder.

Study on Simulating the Temperature Field of P110 Oil Case for Quenching by Finite Element Method

2013 ◽  
Vol 834-836 ◽  
pp. 1563-1566
Author(s):  
Yang Zhou ◽  
Ba Sheng Ou Yang ◽  
Bao Zhou Chen
Keyword(s):  
Thermal Conductivity ◽  
Finite Element Method ◽  
Residual Stress ◽  
Finite Element ◽  
Temperature Field ◽  
Specific Heat ◽  
Convection Coefficient ◽  
Temperature Field Distribution ◽  
Study Objective ◽  
Finite Element Software

This essay direct at quenching craft of P110 oil case, makes 25MnV steel as study objective, considers geometric symmetry of oil case, analyzes chemical component of oil case, measures thermal conductivity, specific heat and convection coefficient, simulates the temperature field of the quenching oil case by finite element software, and receives the temperature field distribution and the change along thickness, the result closes to the date of fact. This is reference to establishment and prediction of quenching craft and next research of residual stress of quenched oil case.

The Simulation of Cutting Force and Temperature Field in Turning of Inconel 718

2010 ◽  
Vol 458 ◽  
pp. 149-154 ◽  
Author(s):  
Zhen Chao Yang ◽  
Ding Hua Zhang ◽  
Xin Chun Huang ◽  
Chang Feng Yao ◽  
Yong Shou Liang ◽  
...  
Keyword(s):  
Finite Element ◽  
Temperature Field ◽  
Cutting Force ◽  
Cutting Forces ◽  
Inconel 718 ◽  
Metal Cutting ◽  
Cutting Speed ◽  
Maximum Temperature ◽  
Cutting Depth ◽  
Finite Element Software

Finite element method (FEM) is a powerful tool to predict cutting process variables such as temperature field which are difficult to be obtained from experimental methods. The turning process of Inconel 718 is simulated by AdvantEdge which is professional metal-cutting processing finite element software. The effects of cutting speed, feed and cutting depth on cutting force and temperature field are analyzed. The results show that cutting forces decrease with cutting speed increasing, and increase with feed and cutting depth, and the influence of cutting depth on cutting forces is significant. The maximum temperature in the cutting zone located on the rake face at a distance of about 0.01 mm from the tool tip. As cutting speed and feed increase, the maximum temperature in the cutting area increases. The influence of cutting speed on cutting temperature is significant, but the cutting depth has little impact on temperature.

Analysis on Temperature Field of Work-Piece during Cross Wedge Rolling

2011 ◽  
Vol 230-232 ◽  
pp. 352-356
Author(s):  
Wen Ke Liu ◽  
Kang Sheng Zhang ◽  
Zheng Huan Hu
Keyword(s):  
Finite Element ◽  
Temperature Field ◽  
Metal Flow ◽  
Work Piece ◽  
Contact Deformation ◽  
Cross Wedge Rolling ◽  
Forming Process ◽  
Rigid Plastic ◽  
Finite Element Software ◽  
Deform 3D

Based on the rigid-plastic deformation finite element method and the heat transfer theories, the forming process of cross wedge rolling was simulated with the finite element software DEFORM-3D. The temperature field of the rolled piece during the forming process was analyzed. The results show that the temperature gradient in the outer of the work-piece is sometimes very large and temperature near the contact deformation zone is the lowest while temperature near the center of the rolled-piece keeps relatively stable and even rises slightly. Research results provide a basis for further study on metal flow and accurate shaping of work-piece during cross wedge rolling.

Finite Element Analysis about the Influence that High-Speed Motorized Spindle Spindle System Material has on its Temperature Field

2013 ◽  
Vol 712-715 ◽  
pp. 1209-1212 ◽  
Author(s):  
Ke Zhang ◽  
Xiang Nan Ma ◽  
Li Xiu Zhang ◽  
Wen Da Yu ◽  
Yu Hou Wu
Keyword(s):  
Heat Transfer ◽  
Finite Element ◽  
Temperature Field ◽  
Heat Transfer Rate ◽  
Transfer Rate ◽  
High Speed ◽  
Ceramic Materials ◽  
Motorized Spindle ◽  
Element Analysis ◽  
Finite Element Software

The article has analyzed the changes of temperature of different materials of the spindle, and considered 170SD30 Ceramic Motorized Spindle and the same model Metal Motorized Spindle as the research objects, analyzed the inside heat source and heat transfer mechanism of the high-speed motorized spindle; used finite element software to set up the model of the motorized spindle, and did simulation and analysis. Verified by simulation, heat transfer rate of ceramic materials is slower than the metallic materials, in actual operation of the process, due to different materials have different heat transfer rate, so the temperature distribution of the different materials of motorized spindle are different. This conclusion provides the basis to solve motorized spindle temperature field distribution.

scholarly journals Finite Element Analysis and Statistical Optimization of End-Burr in Turning AA2024

Metals ◽  
2019 ◽  
Vol 9 (3) ◽  
pp. 276 ◽  
Author(s):  
Muhammad Asad ◽  
Hassan Ijaz ◽  
Waqas Saleem ◽  
Abdullah Mahfouz ◽  
Zeshan Ahmad ◽  
...  
Keyword(s):  
Finite Element ◽  
Orthogonal Cutting ◽  
Research Work ◽  
Cutting Speed ◽  
Cutting Parameters ◽  
Shear Zones ◽  
Statistical Analyses ◽  
Burr Formation ◽  
Pivot Point ◽  
Exit Edge

This contribution presents three-dimensional turning operation simulations exploiting the capabilities of finite element (FE) based software Abaqus/Explicit. Coupled temperature-displacement simulations for orthogonal cutting on an aerospace grade aluminum alloy AA2024-T351 with the conceived numerical model have been performed. Numerically computed results of cutting forces have been substantiated with the experimental data. Research work aims to contribute in comprehension of the end-burr formation process in orthogonal cutting. Multi-physical phenomena like crack propagation, evolution of shear zones (positive and negative), pivot-point appearance, thermal softening, etc., effecting burr formation for varying cutting parameters have been highlighted. Additionally, quantitative predictions of end burr lengths with foot type chip formation on the exit edge of the machined workpiece for various cutting parameters including cutting speed, feed rate, and tool rake angles have been made. Onwards, to investigate the influence of each cutting parameter on burr lengths and to find optimum values of cutting parameters statistical analyses using Taguchi’s design of experiment (DOE) technique and response surface methodology (RSM) have been performed. Investigations show that feed has a major impact, while cutting speed has the least impact in burr formation. Furthermore, it has been found that the early appearance of the pivot-point on the exit edge of the workpiece surface results in larger end-burr lengths. Results of statistical analyses have been successfully correlated with experimental findings in published literature.

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.

The Study of Bone Cutting Force with FEM

2014 ◽  
Vol 974 ◽  
pp. 389-393 ◽  
Author(s):  
Sen Liu ◽  
Dong Mei Wu ◽  
Jun Zhao
Keyword(s):  
Finite Element ◽  
Cutting Force ◽  
Cutting Speed ◽  
Cutting Parameters ◽  
Element Model ◽  
Cutting Surface ◽  
On Line ◽  
Force Velocity ◽  
Optimization Of Cutting Parameters

In orthopedic surgery, it is easy to do harm to surrounding tissues, so the study of bone cutting is necessary. In this article, a finite element model (FEM) of orthogonal bone cutting is developed. Cutting force intra-operatively can provide the surgeon with additional on-line information to support him to control quality of cutting surface. The obtained cutting force decreased little with cutting speed increasing, but ascended evidently with cutting depth increasing. The results of finite element simulations are aimed at providing optimization of cutting parameters and the basic information for hybrid force-velocity control of a robot-assisted bone milling system.

A MIDAS Simulation Analysis of a Pile Cap’s Pipe Cooling Technology

2014 ◽  
Vol 614 ◽  
pp. 124-127
Author(s):  
Meng Kai Lin ◽  
Hai Lian Li
Keyword(s):  
Field Theory ◽  
Finite Element ◽  
Temperature Field ◽  
Temperature Difference ◽  
Simulation Analysis ◽  
Hydration Heat ◽  
Finite Element Software ◽  
Cooling Method ◽  
Pile Cap ◽  
Cooling Technology

Taking the concrete pouring for a passenger station’s pile cap as the research background, the paper establishes a model of pile cap’s hydration heat, by using the finite element software MIDAS. The paper also studies the main parameters and the temperature field theory which affect the hydration heat. It indicates that the pipe cooling method can significantly reduce the temperature difference between the inside and the outside when pouring massive concretes, and it is an effective way to prevent the generation of cracks.

FE Simulation of Vacuum Hot Bulge Forming Process of BT20 Ti-Alloy Cylindrical Workpiece

2008 ◽  
Vol 392-394 ◽  
pp. 366-369
Author(s):  
Ming Wei Wang ◽  
Li Wen Zhang
Keyword(s):  
Numerical Simulation ◽  
Finite Element ◽  
Heating Temperature ◽  
Radiation Heat Transfer ◽  
Element Model ◽  
Ti Alloy ◽  
Forming Process ◽  
Relaxation Theory ◽  
Finite Element Software ◽  
Cylindrical Workpiece

The vacuum hot bulge forming has been used in aerospace industry to manufacture cylindrical workpiece with improved mechanical properties and reduced fabrication cost. Vacuum hot bulge forming is based on the material soften and the stress relaxation theory. Different from other metal forming techniques, deformation of the workpiece takes place well below yield point and the amount of plastic deformation is directly relaxed to heating temperature and holding time. In this paper, a two-dimension thermo-mechanical coupled finite element model was developed. In this model, nonlinear radiation heat transfer and thermal physical properties of material depending on temperature were considered. This paper carried out numerical simulation of vacuum hot bulge forming of BT20 Ti-alloy cylindrical workpiece by using finite element software MSC.Marc. The temperature field, deformation field and stress field of hot bulge forming of BT20 Ti-alloy cylindrical workpiece were calculated. Numerical simulation results were accorded with experimental ones, which provided for the practice production as theory bases.

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