Abstract:

Abstract： For complex surface multi-axis machining process, a complete hierarchical model for multiaxis milling was presented. The geometric model, kinematics model and mechanistic model are integrated to analyse the machining methods. The method selected for geometric stock modeling is the dexel approach. The cutter workpiece engagement defines the instantaneous intersection boundary between the cutting tool and the in-process workpiece. From the CWE, the cutter entry-exit angles and depth of cuts are found and used to calculate the instantaneous cutting forces. The kinematics model also supports the calculation of workpiece updating and cutting force during the multiaxis milling process. The constrained optimization is solved by sequential quadratic programming and the machine operates at threshold levels. The production time in a flank milling propeller was reduced considerably to 20% with the satisfaction of precision demand.
Key words：

Key words: multi-axis, hierarchical, geometric simulation, mechanistic model, motion planning