摘要
双光源选择性激光烧结成型可以制作大尺寸的制件,但对加工面预热温度场的均匀性提出了更高的要求。提出了一种不等高预热方法,并用ANSYS分析了各加热管组在不同高度、不同辐射力时的受热面温度的分布规律,获得了最佳温度场分布时各个加热管的具体高度,并在实验平台中进行了验证。
The double light source selective laser sintering can make big size of the parts,but a higher demand is put on uniformity of temperature field on the workpiece surface.It puts forward a method of unequal altitude preheating,using the finite element method to analyze the influence on preheating temperature field when the heating tube is at different heights and power,and optimum distribution of preheating temperature field are obtained with this method,and verified in the experiment.
出处
《机械设计与制造》
北大核心
2013年第5期85-87,共3页
Machinery Design & Manufacture
基金
陕西省自然科学基金(2012JZ7001)
陕西省教育厅科学研究计划资助(12JK0663)
关键词
选择性激光烧结
辐射角系数
ANSYS
不等高预热
温度场均匀性
Selective Laser Sintering
Coefficient of Radiation Angle
Ansys
Unequal Altitude Preheating
Uniformity of Temperature Field