Study On3D Printing Manufacture Of The Elliptical Ring Cross Section SCMW Gear

3D printing is a recent hot topic in the field of manufacturing technology, with a new"growth " stacking method, led a new trend of parts design and manufacturing. Byeliminating tools and clamping constraints from the traditional processing methods, partsmolding ability is greater and conducive to the combination of part functional design andprocessing.The elliptical ring cross section SCMW gear is the new principle gear, also known asspace curve mesh wheel, it is a complex three-dimensional structure parts. Conventionalmachining methods involve more process issues, can not produce complex three-dimensionalstructure of parts. This paper will address this situation, conduct research on the ellipticalcross-section SCMW ring gear manufacturing three-dimensional printing technology,including3DP process and FDM technology.Firstly, the printing accuracy factors were analyzed, including the pre-treatment on theaccuracy of the data, the impact of the error and the processing accuracy of the printingprocess. Error printing process includes forming3DP process error and FDM moldingprocess errors. By analyzing the impact of these errors on the printing accuracy and proposedsolutions, to provide a reference for subsequent processing.In the3D printing manufacturing research of the elliptical ring cross section SCMWgear, the contents including the technical characteristics of the printer, STL formatconversion model, the RP software parameters settings, post-processing operations and partshandling. FDM process using UP!3D printer processing capstan, discussed the process oflocating the direction of gear, set print options for optimizing the parameters and operationalprocedures of the printer, and finally get the gear processing model.3DP process using ZPrinter250printer processing the driving wheel and the driven wheel,discussed thepositioning direction of the gear machining,print parameter settings and optimization, printeroperation process,and finally print out good quality gear models. This study has guidingsignificance for the printing precision,process parameter selection and printer operation,providing a practical case reference for the3D printing.