Finite Element Simulation of Temperature Field during Grinding of SiCp/Al Composites

2011 ◽  
Vol 487 ◽  
pp. 70-74 ◽  
Author(s):  
C.Y. Zhang ◽  
Li Zhou ◽  
Shu Tao Huang
Keyword(s):  
Finite Element ◽  
Temperature Field ◽  
Diamond Wheel ◽  
Grinding Wheel ◽  
Grinding Process ◽  
Grinding Temperature ◽  
Grinding Forces ◽  
Temperature Distributions ◽  
Element Simulation ◽  
Grinding Temperature Field

Based on the theory of grinding temperature field and the grinding forces obtained from the experiment, the heat flow during grinding of SiCp/Al composites was calculated. The temperature distributions have been simulated during grinding process in the case of diamond wheel and SiC wheel. The effects of grinding wheel, workpiece speed and grinding depth on the grinding temperature field were discussed. The results show that the grinding temperature with SiC wheel is much higher than that of diamond wheel in the same grinding condition, and the grinding temperature gradually decreases with the increasing of the workpiece speed or the decreasing of the grinding depth for both the diamond wheel and SiC wheel.

Finite Element Analysis of Grinding Temperature Field for NMQL in Nickel-Base Alloy Grinding

2020 ◽  
pp. 102-131
Keyword(s):  
Finite Element ◽  
Temperature Field ◽  
High Efficiency ◽  
Base Alloy ◽  
Grinding Temperature ◽  
Element Analysis ◽  
Element Simulation ◽  
Step Algorithm ◽  
Nickel Base ◽  
Grinding Temperature Field

Temperature is not only an important parameter in machining, but also an important basis for process optimization. Accurate prediction and reasonable analysis of grinding temperature is of great and far-reaching significance to the development and promotion of nanofluid micro-lubrication. In this chapter, the mathematical model of finite element simulation of temperature field of high efficiency deep grinding under four kinds of cooling lubrication conditions is established, and the three boundary conditions and the constraints of simulation model are established, and the mesh division and time step algorithm are determined respectively. Using ABAQUS simulation platform and theoretical model to simulate grinding temperature field, the distribution characteristics of grinding temperature field under different working conditions are analyzed from different directions, different grinding depths, and different workpiece materials.

A Study on the Grinding Temperature Field for Titanium Alloy

2007 ◽  
Vol 339 ◽  
pp. 45-49
Author(s):  
W. Li ◽  
Tong Xing ◽  
Bao Xiang Qiu ◽  
Gang Xiang Hu ◽  
Yang Fu Jin
Keyword(s):  
Finite Element ◽  
Temperature Field ◽  
Heat Source ◽  
Simulation Software ◽  
Transient Temperature ◽  
Fe Model ◽  
Grinding Temperature ◽  
Wet Grinding ◽  
Dry Grinding ◽  
Grinding Temperature Field

A reasonable finite element (FE) model of grinding temperature field has been developed on the basis of analysis of the transient temperature field， and three kinds of boundary conditions are loaded on the element of a moving heat source. The study, which is based on the finite element principle, has been carried out using the numerical simulation software ANSYS. Many results have been obtained including three dimensional temperature distribution map. The simulated results under different conditions show good agreement with the experimental results. With the comparison of the dry-grinding and wet-grinding, the result shows that the wet-grinding temperature with a proper grinding fluid is rather lower than the dry-grinding temperature. Finally, the variable coefficient of convective heat transfer and the different form heat source have been discussed in detail.

Temperature Field and Thermal Residual Stress of Grinding GH4169 with Conventional Aluminum Oxide Wheel

2013 ◽  
Vol 589-590 ◽  
pp. 238-244
Author(s):  
Tao Wang ◽  
Guo Ding Chen
Keyword(s):  
Finite Element Method ◽  
Residual Stress ◽  
Finite Element ◽  
Temperature Field ◽  
Aluminum Oxide ◽  
Thermal Residual Stress ◽  
Grinding Temperature ◽  
Grinding Parameters ◽  
Grinding Temperature Field ◽  
Element Method

The constitutive relationship of GH4169 superalloy was investigated. The grinding thermal load acting on GH4169 workpiece in grinding process with conventional aluminum oxide wheel was determined by using the method combining finite element method (FEM) with experiment. The grinding temperature field and grinding thermal residual stress generated in GH4169 were calculated via finite element method (FEM). Finally, the relation between grinding parameters and grinding temperature field and that between grinding parameters and thermal residual stress were discussed.

Research on Grinding Temperature of a New Diamond Grinding Wheel

2013 ◽  
Vol 652-654 ◽  
pp. 2205-2208
Author(s):  
Qiao Ping Wu ◽  
Zhao Hui Deng ◽  
Yan Li Gong
Keyword(s):  
Diamond Wheel ◽  
Experimental Results ◽  
Grinding Wheel ◽  
Grinding Process ◽  
Grinding Temperature ◽  
Al2o3 Ceramic ◽  
Diamond Grinding Wheel ◽  
Diamond Grinding

It is aimed at developing a new diamond wheel in order to overcome the shortages of traditional grinding wheel, such as the abrasive easily fall off the grinding wheel prematurely, high grinding temperature, random grits distribution and the loading problems become more severe in grinding process. And further study on the grinding temperature of the new diamond wheel prepared in comparison with traditional resin-bonded diamond grinding wheel in machining Al2O3 ceramic. The prepared new diamond wheel has many diamond fibers involved in grinding process which are artificially ordered, diamond grits are not easily fall off, and it has big chip-pocket space and heat dissipating capability. The experimental results indicated that the grinding temperature of the new diamond wheel in comparison with the conventional diamond wheel under the same conditions was decreased by 80°C-120°C.

Finite Element Analysis of Grinding Temperature Field with Water Vapor as Coolants

2012 ◽  
Vol 472-475 ◽  
pp. 456-461
Author(s):  
Jia Long Ren ◽  
Li Gang Zhao ◽  
Yan Wang ◽  
Chun Yan Zhang ◽  
Xi Rong Tian
Keyword(s):  
Heat Transfer ◽  
Finite Element ◽  
Temperature Field ◽  
Water Vapor ◽  
Finite Element Method Simulation ◽  
Grinding Temperature ◽  
Element Analysis ◽  
Depth Direction ◽  
Temperature Filed ◽  
Grinding Temperature Field

Combined with the fluid mechanics, heat transfer and cooling experiments of grinding to obtain the conclusions: the water vapor with certain pressure and temperature has large heat transfer coefficient and can significantly reduce the temperature of grinding zone in grinding process. Firstly, simulates the temperature filed with water vapor as coolants in grinding field to obtain its temperature distributing situation using software of ANSYS. Then, research the influences of different grinding parameters to the grinding temperature field and grinding temperature distribution along the depth direction of the specimen. In the end, contrasts the data between simulation and experiment of grinding temperature to prove scientific properties of the finite element method simulation.

Finite Element Modeling of the Temperature Field during Grinding Processes

2012 ◽  
Vol 468-471 ◽  
pp. 1689-1692
Author(s):  
Sun Yong ◽  
Yong Qing Yang
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Titanium Alloy ◽  
Temperature Field ◽  
Grinding Force ◽  
Wheel Speed ◽  
Three Dimensions ◽  
Grinding Temperature ◽  
Machining Parameters ◽  
Grinding Temperature Field

By using three dimensions finite element method, the temperature distribution has been simulated in grinding of titanium alloy with SiC wheel. The effects of wheel speed, workpiece speed and tangential grinding force on the grinding temperature field were investigated. The results show that the grinding temperature decreases with the increasing of the workpiece speed, and increases with the increasing of the grinding depth and wheel speed. The obtained results can provide a theory reference for the design and selective of machining parameters during grinding titanium alloy.

Research on Temperature Field of Nano-Composite Ceramics by Multi-Ultrasonic Grinding

2012 ◽  
Vol 522 ◽  
pp. 26-30 ◽  
Author(s):  
Jin Xue Xue ◽  
Bo Zhao
Keyword(s):  
Temperature Field ◽  
Surface Temperature ◽  
High Surface ◽  
Grinding Wheel ◽  
Grinding Temperature ◽  
Workpiece Surface ◽  
Grinding Parameters ◽  
Ultrasonic Grinding ◽  
Orthogonal Experiments ◽  
Grinding Temperature Field

In processing of structure ceramics materials with diamond grinding wheel, grinding heat is one of vital factors influencing workpiece surface quality. Grinding parameters have important influences on workpiece surface temperature distribution. Contrast experiments on grinding temperature field of ZrO2 in common and ultrasonic grinding were carried out in the paper by manual thermocouple method. The relationship between grinding parameters and temperature were researched theoretically and experimentally. The results show that the farther the distance from grinding surface, the smaller the peak value of temperature is. With the increases of grinding depth, grinding speed and feedrate, the surface temperature will heightens accordingly. It was proved that grinding depth is the most vital factor influencing grinding temperature field through orthogonal experiments. Furthermore, comparing with high surface layer temperature which often results in grinding burn in traditional grinding, ultrasonic grinding can reduce grinding temperature effectively.

The Finite Element Analysis of Surface Temperature on Dry Belt Grinding for Titanium Alloys

2008 ◽  
Vol 53-54 ◽  
pp. 219-224 ◽  
Author(s):  
Wen Guo Huo ◽  
Jiu Hua Xu ◽  
Yu Can Fu
Keyword(s):  
Finite Element ◽  
Temperature Field ◽  
Titanium Alloys ◽  
Element Model ◽  
Grinding Temperature ◽  
Belt Grinding ◽  
Element Analysis ◽  
Line Heat Source ◽  
Variation Characteristics ◽  
Grinding Temperature Field

This paper studies the grinding temperature field of dry belt grinding titanium alloys using finite simulation and experiments. A reasonable finite element model of dry belt grinding temperature field is established on the basis of ANSYS. And three kinds of boundary conditions are loaded on the element of a moving line heat source. The corresponding computer program is designed to calculate the temperature field for different grinding parameters, and the experiment results show that the simulated temperature have good agreement with the measuring ones. The model could be utilized to forecast the distribution and variation characteristics of the grinding temperature field under different conditions.

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