椭圆环截面SCMW齿轮三维打印制造技术研究

发布时间：2018-05-31 15:04

本文选题：三维打印 + 椭圆环截面SCMW齿轮　；参考：《华南理工大学》2013年硕士论文

【摘要】：三维打印技术是近年来制造技术领域的研究热点，采用全新的“增长”堆积法，带动了零件设计和加工制造的新趋势。由于消除了传统加工手段带来的刀具和装夹约束，零件的加工成型能力更大，有利于零部件的功能设计和可加工性的结合。椭圆环截面SCMW齿轮为新原理齿轮，又称空间曲线啮合轮，属于复杂三维结构零件。传统的机械加工方法涉及较多的工艺问题，，无法制造复杂的三维结构零件。本课题将针对这一情况，开展对椭圆环截面SCMW齿轮三维打印制造技术的研究，其中包括3DP工艺和FDM工艺。本文首先对影响打印精度的因素进行了分析，包括前期数据处理对精度的影响,打印过程的误差和后处理过程对精度的影响。打印过程的误差包括3DP工艺成型误差和FDM工艺成型误差。通过分析这些误差对打印精度的影响并提出了解决的方法，为后续的加工提供了参考依据。在椭圆环截面SCMW齿轮的三维打印制造研究中，内容包括打印机的技术特点、模型STL格式的转换、RP软件参数的设置、加工操作和零件后处理等。FDM工艺中采用UP！三维打印机加工主动轮,讨论了齿轮加工的定位方向，打印参数的设置优化和打印机的操作流程,最后加工得到齿轮模型。3DP工艺中采用Z Printer250打印机加工主动轮和从动轮，主要讨论了打印机的工艺条件、工艺流程和齿轮加工的定位方向等，最后打印出较好质量的齿轮模型。此制造研究对打印精度、相关工艺参数的选取和打印机的操作具有指导意义，为三维打印产品提供了实际的案例参考。
[Abstract]:In recent years, 3D printing technology is a research hotspot in the field of manufacturing technology. New "growth" stacking method is adopted, which leads to a new trend of parts design and manufacturing. Because of eliminating the tool and clamping constraints brought by the traditional machining means, the machining ability of the parts is greater, which is beneficial to the combination of functional design and machinability of the parts. The elliptical ring section SCMW gear is a new principle gear. Also called space curve meshing wheel, it belongs to complicated three-dimensional structure part. Traditional machining methods involve many technological problems and can not make complicated three-dimensional structural parts. In this paper, the 3D printing manufacturing technology of elliptical ring section SCMW gears is studied, including 3DP process and FDM process. Firstly, the factors that affect the printing accuracy are analyzed in this paper. It includes the effect of data processing on precision, the error of printing process and the effect of post-processing on accuracy. The error of printing process includes 3DP process forming error and FDM process forming error. By analyzing the influence of these errors on the printing accuracy and putting forward the methods to solve them, the paper provides a reference for the subsequent machining. In the research of 3D printing manufacturing of SCMW gears with elliptical ring section, the contents include the technical characteristics of the printer. Model STL format conversion RP software parameters setting, processing operations and parts after processing, etc. FDM process using UP!! The orientation of gear machining, the setting optimization of printing parameters and the operation flow of printer are discussed in this paper. Finally, Z Printer250 printer is used to process active wheel and slave wheel in gear model. 3DP process. This paper mainly discusses the technological conditions of the printer, the technological process and the orientation direction of the gear machining, and finally prints out the gear model with better quality. This manufacturing research is of guiding significance for printing accuracy, selection of relevant process parameters and operation of printers, and provides a practical case reference for 3D printing products.
【学位授予单位】：华南理工大学
【学位级别】：硕士
【学位授予年份】：2013
【分类号】：TH132.41;TH16

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