Study On Post Processing And Programming Technology For Five Axis CNC Milling

Five-axis NC machining technology with its special advantages becomes more and more important in the machining of complex and high precision parts.Without the reasonable programming of five-axis NC machining and the pertinent special post processing, the advantages can not be exerted completely. Owing to the complexity of the motion between the tool and the workpiece, it is more difficult to get the programming of the five-axis NC machining than the three-axis.And the five-axis post processing is the main constraint in improving the effectivity of the machining tool just because of the difficult redevelopment, technique secrecy and so on.Based on resolving the two problems above, some relative research is done in this paper.First, the post-processing aiming at DMU70V double turntable table machining center made by DECKEL MAHO company in Germany is developed There are two methods to realize the post processing :one is the redevelopment of the general post-processing module based on the GPP2 of Cimatron E; the other is the pertinent special programming of the post processing on the basis of the coordinate transformation.After the analysis of five-axis NC machining process, the NC programmings of integral impeller and the steel PDC drill cutter are given in the paper.With the VERICUT simulation software for machining, the two post-processings above are confirmed correct and reasonable .The research of the paper have some important significance at resolving the problem of post-processing and improving the effectivity of NC machining programming.