【作者】 贺美云；

【导师】 张银喜；

【作者基本信息】 太原理工大学 ， 机械制造及其自动化， 2003， 硕士

【摘要】 磁性研磨加工技术是光整加工的新工艺、新技术，由于其独特的加工特点，即磁性磨料自锐性好，与加工表面适应性好及磁性磨料磁刷柔性好，所以磁性研磨加工技术不断获得发展并在生产领域得以迅速推广。而作为磨具的磁性磨料是磁性研磨加工的关键所在，为此，本文分析研究了磁性磨料磨粒的磨削机理，并在此基础上提出了磁性研磨加工技术对磁性磨料性能的要求。在对磁性磨料的组成成分、结构形状、规格大小、研磨压力的形成以及磁性磨料的制备方法进行分析研究的基础上，提出烧结法制备磁性磨具。作者从理论上揭示了原料粉末的特性和粉末冶金生产工艺中各个环节对烧结而成的磁性磨料性能的影响，为如何确立制备方案提供了理论依据。并通过实验证明了烧结制备磁性磨料的可行性。而且就所烧制的磁性磨料进行了加工特性的实验研究，确定了最佳的实验参数，分析了磨料的不同材料、不同配比成分、不同磨料粒度、以及不同烧结温度的加工特性，比较了烧结磁性磨料和粘结磁性磨 太原理工大学硕士学位论文料的加工效果，并对其经济性进行了分析，最终获得了影响烧结磁性磨料加工效果的实验资料。进而为磁性研磨加工的推广应用获得了有实际参考价值的工艺参数。更多还原

【Abstract】 The technology of magnetic abrasive finishing (MAP) is new technics and new technology of finishing machining. The technology of magnetic abrasive finishing will achieve development and be rapidly spreaded in the product domain ,because of its especial machining way , which is good own sharpness of magnetic abrasive grains > fine own applicability of magnetic abrasive grains and workpiece -?good flexility of magnetic abrasive grains . By way of grinding tool, magnetic abrasive grains are key of magnetic abrasive finishing, so the paper analyses and researches grinding mechanism of magnetic abrasive grains and bring forward capability requirement of magnetic abrasive grains for magnetic abrasive finishing on the basic of it. In the paper,following items on MAGs have been analyzed: composition structure, shape, size, finishing pressure in grinding process and the preparation way of magnetic abrasive grains, then sintering preparation of magnetic abrasive grains is brought forward.So the author seriously studies the related knowledge of powder metallurgy and sintering theories, and the author theoretically open out influence of every tache for sintering magnetic abrasive grains in powder metallurgy production. These offer theoretically basis for establishing preparation scheme. The author makes lots experiment to making sure key technology parameter in the technologic process, and prove good to sinter magnetic abrasive grains by experiment. And the author studies machining characteristic of sintering magnetic abrasive grains by experiment. The first proper experiment parameter is made sure. Then the paper analyses machining characteristic of different material abrasive grains, different distributingcomposition, different granularity of abrasive grains and different sintering temperature. Machining effect is compared on felting and sintering magnetic abrasive grains. So experiment information is gained on affecting machining effect of sintering magnetic abrasive grains. These offer usefully technologic parameter for widely spreading of technology of magnetic abrasive finishing.更多还原