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.

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.

Finite Element Simulation for Tensile Properties of δ-Al2O3f/Al Alloy Composites with Thermal Residual Stress Considered

2005 ◽  
Vol 297-300 ◽  
pp. 1270-1276 ◽  
Author(s):  
Juan Zhang ◽  
Qing Gao ◽  
Guo Zheng Kang ◽  
Xianjie Yang
Keyword(s):  
Finite Element Method ◽  
Residual Stress ◽  
Finite Element ◽  
Short Fiber ◽  
Thermal Residual Stress ◽  
Al Alloy ◽  
Element Simulation ◽  
Al2o3 Fiber ◽  
Better Than ◽  
Element Method

First, the characteristics of thermal residual stress in randomly oriented short δ-Al2O3 fiber reinforced aluminum alloy composites were analyzed by an elasto-plastic finite element method regarding the effect of the variation in short fiber orientation. Then, the effective moduli and initial tensile stress-strain curves of the composites were simulated by finite element method with the thermal residual stress taken into account. It is concluded that the simulated results obtained with thermal residual stress contained agree with corresponding experimental results better than those obtained in thermal residual stress-free cases.

Numerical Simulation of Riveting Process

2010 ◽  
Vol 34-35 ◽  
pp. 641-645
Author(s):  
Hong Shuang Zhang
Keyword(s):  
Numerical Simulation ◽  
Finite Element Method ◽  
Residual Stress ◽  
Finite Element ◽  
Process Parameters ◽  
Static Method ◽  
Riveting Process ◽  
Relationship Of ◽  
The Relationship ◽  
Element Method

In order to fully understanding the distribution of residual stress after riveting and the relationship between residual stress and riveting process parameters during riveting, Finite Element Method was used to establish a riveting model. Quasi-static method to solve the convergence difficulties was adopted in riveting process. The riveting process was divided into six stages according to the stress versus time curves. The relationship of residual stress with rivet length and rivet hole clearance were established. The results show numerical simulation is effective for riveting process and can make a construction for the practical riveting.

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