Process Research Based On TPU Material In Hot Fused Deposition Modeling

Rapid Prototyping Technology is a technology that converts a model into a physical prototype with the help of computer-assisted software and converts it into a physical prototype.Most Rapid Prototyping technologies are based on CAD models and are cut into many 2D dimensions.The graphics are stacked layer by layer to build the original 3D model.The most widely used is the Fused Deposition Modeling technology.So fat.relevant research have shown that the Fused Deposition Modeling technology(FDM)has gained public attention with its ease of use and the simplicity of the machine itself.and the materials for Fused Deposioton Modeling technology have been limited.Previous.most of the scholars have studied the properties of a series of engineering plastics,such as PLA,ABS,PC or modified engineering plastics.but there is not a detailed study of flexible materials such as composite TPU.This study aims to understand TPU more precisely.In the application of hot-melt deposition technology,so a series of process parameters for the test analysis and research of TPU in Fused Deposition Modeling.This paper is divided into 5 chapters:The first chapter is the introduction part of the paper.The chapter sorted out the relevant background of 3D printing technology,clarified the significance of the research,compared and analyzed the research results of domestic and foreign researchers in the forming characteristics of hot-melt deposition molding,molding materials,and error influencing factors.Finally,the specific research content structure and reaserch context of this paper are established.The second chapter is the design part of Fused Deposition Modeling experiment system.This chapter first introduced the Fused Deposition Modeling technology process form the rapid prototyping principle,and then introduced the improvement of the mechanical structure to the importance of this study.Finally,the electrical design part of the experimental system was explained by the ease of electrical design.Chapter 3 is part of the model simulation analysis.This chaper first uses software to establish the the theoretical model and calculate the mechanical properties.It is divided into the follow aspects:contour boundary force,fill part force,interlayer adhesion and interfilament adhesion force,and then compare the calculation of each force and last comparing with experimental results.Chapter 4 is about the impact of each slice parameter on the overall performance of the print.This chapter first analyzes the difference in the printing speed of the test sample,and then analyzes the effect of different temperatures on the overall performance the sample.Finally,the effect of the modeling direction and the forming angle on the overall performance of the sample is analyzed.The above analysis provides an optimized solution for the establishment of model simulation.The last chapter analyzes and summarizes the work of this paper,and points out the influencing factors when using TPU material in rapid prototying technology,and puts forward the application prospect of TPU in Fused Depositon Modeling technology.