Study Of Fused Deposition Rapid Prototyping Precision Based On Temperature Effect

Fused Deposition Modeling rapid prototyping is the most widely used in all molding technology, a rapid prototyping technology. The manufacturing technology has broken the traditional "subtractive" type of processing method, bold change the original processing methods, unique and creative development of the additive type "of the new processing method of manufacturing, due to the forming manufacturing equipment is convenient to carry, and manufacturing products with high efficiency, there have been various related industries to use its own field.The main research work are as follows:1.Technological process and the comparison with other traditional processing methods are summarized in this paper, and the present development situation and future development trend of rapid prototyping technology are introduced. Fused deposition as an important research content of this thesis. It mainly introduces the influence of factors of the forming principle and process flow and the fused deposition molding process molding system,molding material and molding process parameters such as the dimension precision, surface quality and shape precision of the, although after analyzed the process factors to affect the accuracy of reason. Finally, put forward the research content, research purpose and research significance..2. From the fused deposition modeling principle and concrete forming process of analysis of mechanical properties of material forming process caused by the changes, and the fused deposition modeling is constructed according to the basic theory of thermal analysis and thermal radiation piece type analysis of coupling field, and a description of the test pieces in the coupling of temperature field under the basic analysis process and according to the effect of various warping deformation factors, were derived based on the mathematical model of the warping deformation formula.3.With strong analysis function of the software, the thermal structure coupling and thermal should force coupling method, the fused deposition process in the temperature fieldsimulation model was built, the simulation in different molding temperature, molding material temperature and nozzle temperature of heat source under the molding parts of three temperature field coupling, and obtained the test itself should stress, strain and residual should stress distribution and warping deformation changes.4. The data are calculated by using the simulated data, and the basic statistics such as variance, standard deviation and so on are calculated. Then the data were statistically analyzed, and the confidence test was used to verify that the data did not show significant difference. Finally, the corresponding curve by fitting software, the forming temperature range optimal environment.5. The existing fused deposition rapid prototyping equipment transformation, make the molding equipment to meet the forming environment of temperature control, and based on the conclusion of simulation analysis of relevant research conducted experiments to prove,from the molding experiments with specific measurement for fused deposition rapid prototyping technology development provides theoretical basis...