移动制造FDM机运动状态及黏结面应力分析

发布时间：2018-05-16 14:34

本文选题：移动制造 + 熔融沉积成型　；参考：《塑料工业》2017年05期

【摘要】：移动制造中心为配置3D打印机的卡车,其中的熔融沉积成型(FDM)机运动状态非常复杂,这会影响FDM成型机的成型成功率。为此,分析了FDM成型机的运动状态,主要有水平方向的加速与减速状态、竖直方向的超重与失重状态、水平旋转状态、纵向与横向翻转状态、振动状态等。用WORKBENCH软件进行了不同运动状态下的应力仿真分析,分析得出,在不考虑振动时,零件与热床的黏结面的应力主要受水平加速运动状态的影响,且最大应力主要出现在零件与热床黏结面的边缘部分。在失重状态及超重状态下,黏结面的应力均较小,其最大应力主要分布在黏结面的边缘部分。在考虑振动的运动状态下,零件与热床黏结面的最大主应力及最大剪应力显著增大。
[Abstract]:The mobile manufacturing center is a truck equipped with 3D printer, in which the motion state of the molten deposition molding (FDM) machine is very complex, which will affect the success rate of the molding machine of the FDM. For this reason, the motion state of the FDM molding machine is analyzed, mainly with the acceleration and deceleration state in the horizontal direction, the weight loss state in the vertical direction and the horizontal rotation state. The stress simulation analysis under different motion states is carried out by WORKBENCH software. The stress of the bonding surface between the parts and the hot bed is mainly influenced by the horizontal acceleration state when the vibration is not considered, and the maximum stress occurs mainly in the edge part of the adhesive surface of the parts and the hot bed. Under the condition of weightlessness and overweight, the stress of the bonding surface is small, and the maximum stress is mainly distributed on the edge of the bonding surface. The maximum principal stress and the maximum shear stress of the adhesive surface of the parts and the hot bed are significantly increased under the vibration state of motion.

【作者单位】：西南石油大学机电工程学院;
【分类号】：TP334.8

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