The article is focused on the choice of interpolation types for toolpaths in NC programs. Interpolation type affects the interpretation of an NC program by the control system used in a CNC machine tool. It is important for a production engineer to know about the consequences of the use of various interpolation types in a specific CAM system for toolpath creation. For testing purposes, a general profile of a blade typically utilized in energy devices was used, with toolpaths for contour milling of its profile based on three interpolation types available in the CATIA CAM system (linear int., linear + circular int. and spline interpolation). The comparison of toolpaths is based on the number of blocks of the NC program, feed-rate profile measurement and measurement of machining time. For the machining and measurements, a real three-axis machine tool with the Sinumerik 840D control system has been used. and Obsahuje seznam literatury
The article focuses on a list of options for using interpolations, often referred to as interpolation of higher types. The article pays attention to several representatives of control systems. The issue is also conceived in relation to the preparation of the NC program by CAD/CAM, where the data is prepared for control systems. The available functions of CAD/CAM systems are very diverse. The preparation of the NC program is also related to the issue of postprocessors and therefore they are mentioned in the article as well. Let this article be a basis for those who are interested in the creation of NC programs using non-standard interpolations and serve as an introduction to this issue. and Obsahuje seznam literatury