Temperature Field Simulation of Powder Sintering Process with ANSYS

2017 5th International Conference on Mechanical Engineering, Materials Science and Civil Engineering

机械制造;材料科学;土木建筑工程

He, Hongxiu^1 ; Wang, Jun^1 ; Li, Shuting^1 ; Chen, Zhilong^1 ; Sun, Jinfeng^1 ; You, Ying^1

Center for Robotics Research, School of Mechanical Engineering, Hubei University of Technology, Wuhan, Hubei

430068, China^1

关键词: Parametric design;    Powder sintering;    Quality problems;    Research object;    Sintering process;    Temperature field simulation;    Thermal convections;    Thermo-physical parameters;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/324/1/012008/pdf
DOI  :  10.1088/1757-899X/324/1/012008

来源: IOP

【 摘 要 】

Aiming at the "spheroidization phenomenon" in the laser sintering of metal powder and other quality problems of the forming parts due to the thermal effect, the finite element model of the three-dimensional transient metal powder was established by using the atomized iron powder as the research object. The simulation of the mobile heat source was realized by means of parametric design. The distribution of the temperature field during the sintering process under different laser power and different spot sizes was simulated by ANSYS software under the condition of fully considering the influence of heat conduction, thermal convection, thermal radiation and thermophysical parameters. The influence of these factors on the actual sintering process was also analyzed, which provides an effective way for forming quality control.