Modeling and Prediction of Droplet Deposition Position for Jet 3D Printing
The accuracy of droplet deposition position is one of main factors,affecting the morphology accuracy of spray forming devices.In order to control droplet deposition position,a dynamic prediction model for droplet deposition position is proposed.This paper builds the motion and heat transfer model for micro droplets falling and deposition process,,and studies the centroid position changes of a single micro droplet and two adjacent micro droplets during the dynamic deposition process through numerical simulation and experiment.The results show that compared to the numerical simulation model,the proposed theoretical prediction model has a prediction error of 0.45％for a single micro deposition position,with a prediction error of 0.5％for the deposition distance between adjacent micro droplets,and the comparative experimental results indicate that the proposed theoretical model has a high accuracy of position prediction,which provides a reference for the online control of droplet deposition position and printing trajectory during drop-let spraying 3D printing process.
3D printingmicrodroplet depositionmodelinglocation prediction
万方数据
维普
