中文摘要：

成型精度和打印质量一直是FDM打印的关键问题，在已有模型误差和机械误差的研究基础上，从工艺参数误差着手，分析了不同参数设置所导致的精度误差问题，提出了一种基于正交试验法来提高打印精度和成型质量的切片参数优化设计方法．在参数选取时，利用FDM成型原理构建参数设置方程，将该参数对成型精度的影响具体化，通过设置方程计算出最合理的参数并应用正交试验选择出最优的参数配比，进而实现FDM工艺参数优化设计，并利用实例验证了该方法的有效性．

英文摘要：

Since the molding precision and the printing quality have been the key issues of the FDM printing, this article analyzes the precision problems caused by the different parameters setting error which proceed from process parameter errors on the basis of the existing model error and mechanical error, then puts forward a slice parameter optimization design method based on orthogonal experiment in order to improve the printing precision and molding quality. In the pa- rameters selection, FDM molding principle is used to construct parameter equations and concretize the influence of parameters on the forming precision. The most reasonable parameters are calculated based on the parameter equation, and ratio of the optimal parameters is selected by the orthogonal experiments so as to realize the optimization design of the FDM process parameters and then the examples are used to demonstrate the effectiveness of the proposed method.