非光滑表面磨削机理的研究

发布时间：2018-05-26 13:28

本文选题：非光滑表面 + 磨削　；参考：《沈阳理工大学》2017年硕士论文

【摘要】：非光滑表面是指在界面粘附系统中,若一个光滑表面内的任何宏观区块上存在一个或几种因素构成的非光滑效应,则该表面为非光滑表面。这种结构在各个领域表现出的特殊功能,成为国内外学者和工程界研究的热点。在机械摩擦磨损过程中,非光滑表面具有减少摩擦、降低能量消耗等功效。非光滑表面的常用加工方法有激光加工、磨料喷射加工、电火花加工、切削、滚压、磨削、电化学腐蚀加工等。而将磨削技术应用在非光滑表面加工是一个崭新的领域。目前,非光滑表面的磨削加工方法生产效率低、加工成本高、磨削表面质量不易控制。因此,提高非光滑表面磨削性能已成为新的研究方向。为此,利用金刚石笔将砂轮修整成螺旋槽表面,通过选择合理的磨削参数,探求非光滑表面形貌的成型规律,对磨削非光滑表面的理论及实际应用具有重要意义。首先,利用金刚石笔将砂轮修整成螺旋槽表面,探讨车削法修整砂轮技术,分析各个参数对砂轮修整过程的影响。其次,在确定车削修整砂轮基础上,建立螺旋槽砂轮表面的数学模型,分析金刚石笔刀具参数和加工参数对砂轮螺旋槽的影响,设计出单、双螺旋槽砂轮。再次,建立单颗磨粒外圆磨削运动轨迹的数学模型,结合螺旋槽砂轮数学模型分析了磨削参数对单、双螺旋槽砂轮磨削工件非光滑表面形貌特征的影响。最后,在MATLAB仿真平台中,研究螺旋槽砂轮表面几何参数及磨削参数对工件非光滑表面形貌的影响规律。基于合理的磨削参数,获得一定规律排布的非光滑表面形貌。
[Abstract]:Non-smooth surface is a non-smooth surface if there is a non-smooth effect of one or more factors on any macroscopic block of a smooth surface in the interfacial adhesion system. The special function of this kind of structure in various fields has become the research hotspot of domestic and foreign scholars and engineering circles. In the process of mechanical friction and wear, the non-smooth surface can reduce friction and energy consumption. The common processing methods of non-smooth surface are laser machining, abrasive injection machining, EDM, cutting, rolling, grinding, electrochemical corrosion processing and so on. The application of grinding technology in non-smooth surface processing is a new field. At present, the non-smooth surface grinding method has low production efficiency, high processing cost and difficult to control the grinding surface quality. Therefore, improving the grinding performance of non-smooth surface has become a new research direction. Therefore, the diamond pen is used to repair the grinding wheel into a spiral groove surface, and by selecting reasonable grinding parameters, the shaping law of the non-smooth surface morphology is explored, which is of great significance to the theory and practical application of grinding the non-smooth surface. Firstly, the grinding wheel is trimmed into a spiral groove surface by diamond pen, and the grinding wheel dressing technology by turning method is discussed, and the influence of each parameter on the grinding wheel dressing process is analyzed. Secondly, on the basis of determining the turning and dressing wheel, the mathematical model of the surface of the spiral groove grinding wheel is established, and the influence of the diamond pen tool parameters and machining parameters on the grinding wheel spiral groove is analyzed, and the single and double spiral groove grinding wheels are designed. Thirdly, the mathematical model of the motion track of single abrasive cylindrical grinding is established, and the influence of grinding parameters on the non-smooth surface morphology of workpiece grinding with single and double spiral groove grinding wheel is analyzed in combination with the mathematical model of spiral groove grinding wheel. Finally, the influence of surface geometric parameters and grinding parameters of spiral groove grinding wheel on the non-smooth surface morphology of the workpiece is studied in the MATLAB simulation platform. Based on the reasonable grinding parameters, the non-smooth surface topography is obtained.
【学位授予单位】：沈阳理工大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TG580.6

【参考文献】