Title: 5-axis High Speed NURBS-machining on a new parallel kinematic-machine
Abstract: On CAD-level the hydroforming tool was designed by using drawing simulation software tools to make shure that the drawing process works. CAD-data is communicated to the NC-Programming system where the planning of the machining processes takes place. The milling strategy has to be selected. Tool path generation with the right cutters, all cutting parameters such as feedrate, spindle speed, depth of cutting are done by the NC-programming system. CNC-machining is the milling process where the final tool is created. After the final workpiece is available the quality of the part has to be evaluated. In the field of free form surface parts such as hydroforming parts different measuring methods can be applied. Typically the part is measured on a coordinate measuring machine. The part is probed along a couple of cross sections. The resulting polygone can then be checked against the CAD-original. More sophisticated methods are taking millions of surface points with optical sensors. Based on this points a surface is then mathematically re-engineered for the purpose of comparison against the original CAD-surfaces.