Study On NC Programming System Of Magnetic Abrasive Finishing On Three-Dimensional Surface

NC is a technology using digital information to realize the control of machine tool, is one of the most crucial I ink in modern product technology. It is magnetic abrasive finishing technique,so as its we I I fI exibiIity , seIf-adaptabiIity and the characteristic of shapeness by itself etc. ,makes free curved surface magnetic abrasive processing of numerical control become possible, is the processing method that has the most potent i a I to rea I i ze f i n i sh i ng automat i on. To so I ve the baf f I i ng problem on the curved surface finishing processing automat ion,the paper studies and analyses deeply the NC programming system of magnetic abrasive on three-dimensional .through theoretical ana Iysis, programming and experiment.First, the basic theories have been probed into.These i nc I ude NC i nterpol at ion methods, three-d imens iona I mode I i ng of curved surface as well as the key technology about NC processing. Which offer theory bases for the subject to study. According to that, the NC programming system of magnetic abrasive on three-dimensinal is set up.The system consists of three parts which are rough machiningtechnique, finishing technique and NG programming software etc..The techn i que of rough and f i n i sh mach i n i ng d i scusses the calculation and determination concerning technique parameters in the curved surface processing and offeres theory reference for the operation of programming soft which is realized in parameter and interactive mode.On the foundation above , using C++ and VBA(Visual Basic for Application), the system has developed the NC programming software about three-dimensinal curved surface machining.The software has reached the effect of using digitlization to control the process of magnetic abrasive finishing and can be credible running , easy usage and has certain practical value. The system walks out a key step for the finishing process on complex curved surface gett i ng r id of handwork way and real i zing automatic machining method eventually.