Research On Equipment Design And Printing Methods Of Typical Parts Of Five-axis Fused Deposition Modeling

Due to the advantages of simple printing equipment,low price of printing wire and easy printing operation,Fused Deposit Modeling(FDM)3d printing technology has developed into one of the most widely used 3d printing technologies.However,due to the problems of the traditional FDM 3d printing technology,such as the step effect influenced greatly by the geometric model and the need to introduce the support structure at the inclined plane structure,the surface quality and forming efficiency of the molding process are reduced,which greatly limits the development and application of the technology itself.By investigating the work of support removal in domestic and abroad,this paper proposes a solution of FDM five-axis 3d printing to solve the problems of step effect and support structure.This research is carried out from four aspects: the design of fiveaxis 3d printing system,the establishment of five-axis 3d printing parts classification frame,the design of five-axis 3d printing methods for typical parts and the research on the advantages of five-axis 3d printing.First,the design of the five-axis 3d printing system is carried out.By installing a turntable with two degrees of freedom on a traditional Delta printer,the attitude of the part can be adjusted.According to the demand of variable attitude printing function,the design of multi-axis linkage control using microprocessor is carried out and the six-axis linkage control of motion and extruder motor is realized.On this basis,the five-axis 3d printing software system is designed.Then,based on the analysis of the geometric features of the parts,the design of the five-axis 3d printing of typical parts is carried out.According to the easy segmentation feature of geometric model,the printing method is divided into two categories: fiveaxis printing based on feature segmentation and five-axis printing based on the whole model.Besides,the printing methods for different categories of parts are designed.The classification system is further subdivided according to the characteristics of the feature segmentation surface used for feature segmentation for five-axis printing parts based on feature segmentation.And the classification system is further subdivided according to the algorithm of printing path generation of outer surface contour and inner filling for five-axis printing parts based on the overall model.Then the five-axis printing method is designed for typical parts,and the feasibility of the five-axis printing method is verified by the printing experiment.Finally,the corresponding printing experiment is designed from the aspects of the surface quality,forming efficiency and mechanical properties of the parts concerned most by the fused deposition modeling process.By comparing the experimental results,the superiority of five-axis 3d printing over three-axis 3d printing was confirmed.On this basis,the application scene of five-axis 3d printing is guided to fully show its advantages.