Temperature Field Simulation by Layer Deposition Model Based on Micrograph

2009 ◽  
Vol 45 (08) ◽  
pp. 270
Author(s):  
Haoping ZENG
2010 ◽  
Vol 455 ◽  
pp. 345-349
Author(s):  
B.C. Xie ◽  
Zhen Long Wang ◽  
Yu Kui Wang ◽  
Jing Zhi Cui

In this paper, a thermo-physical model of the electric discharge machining process using finite element method is presented. In this model, parameters such as convection, the latent heat and the thermal properties based on temperature dependent etc. are studied to predict the temperature distribution in the workpiece. The temperature field simulation and experiment were carried out by adopting parameters through optimum pulse curve, and amending the effects of recast layer, the simulation results amended shows a better agreement with experimental results, indicating a theoretical foundation for mechanism of material removal in EDM machining.


2019 ◽  
Vol 6 (5) ◽  
pp. 056551 ◽  
Author(s):  
Xiaohong Zhan ◽  
Hengchang Bu ◽  
Qiyu Gao ◽  
Tingyan Yan ◽  
Wanli Ling

2011 ◽  
Vol 88-89 ◽  
pp. 42-45
Author(s):  
Wei Zhang ◽  
Shu Qin Shi

The simulation of temperature field during laser direct metal deposition(DMD) were researched. The finite element model of single track cladding, multi-track overlapping and multi-layer deposition were established. The temperature field was simulated by ANSYS software basing on life-and-death element and cycle algorithm. Under different process parameters, the temperature and temperature gradient on the cross-section of sample were simulated during single- track scanning, multi-track overlapping and multi-layer deposition. Temperature cycle curves at different position were analyzed and were consistent with actually value. Both simulation and experiment showed that heat accumulation during continuous forming greatly affected the temperature of molten pool.


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