scholarly journals Research on Model Slice and Forming Method of Thin-walled Parts

2021 ◽  
Vol 233 ◽  
pp. 04046
Author(s):  
Changhao Zhang ◽  
Hu Li ◽  
Jianyu Yang ◽  
Huawei Lu ◽  
Peng Su
Keyword(s):  
Numerical Simulation ◽  
Temperature Field ◽  
Structural Characteristics ◽  
Three Dimensional ◽  
Simulation Method ◽  
Processing Parameters ◽  
Transient Temperature ◽  
Transient Temperature Field ◽  
Thin Walled ◽  
Experimental Processing

According to the structural characteristics of thin-walled parts, a model slicing method is proposed, and its mathematical process is established. The three-dimensional transient temperature field in the process of synchronous powder feeding laser cladding is studied and verified by numerical simulation method, and the thin-walled parts formed by later experimental processing are processed by the results of numerical simulation. Using the simulation results of temperature field as the basis for optimizing the processing parameters, the forming path of thin-walled parts is programmed and optimized, and the experimental verification shows the reliability of this method.

Numerical Simulation of Induction Heating for Crankshaft

2010 ◽  
Vol 154-155 ◽  
pp. 1722-1725
Author(s):  
Jin Xiang Liu ◽  
Ri Dong Liao
Keyword(s):  
Numerical Simulation ◽  
Induction Heating ◽  
Eddy Currents ◽  
Three Dimensional ◽  
Processing Parameters ◽  
Coupled Analysis ◽  
Transient Temperature ◽  
Three Dimensional Modeling ◽  
Dimensional Modeling ◽  
Transient Temperature Field

This paper describes the three-dimensional modeling of an induction heating processing for crankshaft. To realize the suitable processing parameters of induction heating, magneto-thermal coupled analysis of eddy currents and heat conduction have been carried out by using the finite element method. The dependence of material properties on temperature is taken into account in numerical simulation. Influences of induction heating parameters on eddy current and temperature are identified. The transient temperature field of heated crankshaft is obtained. The simulation results can offer a reference in determining processing parameters.

scholarly journals Three-Dimensional Numerical Simulation of Transient Temperature Field and Coating Geometry in Powder Feeding Laser Cladding

2013 ◽  
Vol 40 (12) ◽  
pp. 1203007 ◽  
Author(s):  
刘昊 Liu Hao ◽  
虞钢 Yu Gang ◽  
何秀丽 He Xiuli ◽  
李少霞 Li Shaoxia ◽  
郑彩云 Zheng Caiyun ◽  
...  
Keyword(s):  
Numerical Simulation ◽  
Temperature Field ◽  
Laser Cladding ◽  
Three Dimensional ◽  
Transient Temperature ◽  
Transient Temperature Field ◽  
Powder Feeding

Numerical Simulation of Three-Dimensional Molten Pool Temperature Field and Flow Field for Laser Melt Injection Based on Fluent

2012 ◽  
Vol 538-541 ◽  
pp. 1837-1842 ◽  
Author(s):  
Long Zhi Zhao ◽  
Zi Wang ◽  
Xin Yan Jiang ◽  
Jian Zhang ◽  
Ming Juan Zhao
Keyword(s):  
Temperature Field ◽  
Liquid Metal ◽  
Molten Pool ◽  
Metal Flow ◽  
Three Dimensional ◽  
Transient Temperature ◽  
Transient Temperature Field ◽  
Liquid Metal Flow ◽  
Fluent Software ◽  
Thermo Physical Properties

According to the characteristics of laser melt injection, a numerical model for a simplified 3D transient temperature field in molten pool was established using FLUENT software in this paper. In the model, many factors were considered such as liquid metal turbulence, latent heat of phase transformation and material thermo physical properties depending on temperature. The results show that the model can be developed well by FLUENT software. And the results also show that the driving force of the liquid metal flow mechanism.

Three-dimensional transient temperature field model for laser annealing

2005 ◽  
Vol 97 (3) ◽  
pp. 033520 ◽  
Author(s):  
Jean-Yves Degorce ◽  
Jean-Numa Gillet ◽  
François Magny ◽  
Michel Meunier
Keyword(s):  
Temperature Field ◽  
Laser Annealing ◽  
Field Model ◽  
Three Dimensional ◽  
Transient Temperature ◽  
Transient Temperature Field ◽  
Temperature Field Model

The Influence of Thermophysical Properties on a Numerical Model of Solidification

2002 ◽  
Author(s):  
Josef Stetina ◽  
Frantisek Kavicka ◽  
Bohumil Sekanina ◽  
Jaromir Heger
Keyword(s):  
Temperature Field ◽  
Numerical Model ◽  
Thermophysical Properties ◽  
Three Dimensional ◽  
Casting Process ◽  
Transient Temperature ◽  
Treatment Processes ◽  
Transient Temperature Field ◽  
Simultaneous Heating ◽  
Liquid States

Solidification and cooling of a (con)casting, with the simultaneous heating of the mold, is a case of transient spatial heat and mass transfer. This paper introduces an original and universal numerical model of solidification, cooling and heating, of a one-to-three-dimensional stationary and transient temperature field in a system comprising the casting, the mold and its surroundings. This model simulates both traditional as well as non-traditional technologies of casting conducted in foundries, metallurgical plants, forging operations, heat-treatment processes, etc. The casting process is influenced not only by the thermophysical properties (i.e. heat conductivity, the specific heat capacity and density in the solid and liquid states) of the metallic and non-metallic materials, but also by the precision with which the numerical simulation is conducted. Determining these properties is often more demanding than the actual calculation of the temperature field of the solidifying object. Since the influence of individual properties should be neither under- nor over-estimated, it is necessary to investigate them via a parametric study. It is also necessary to determine the order of these properties in terms of their importance.

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