Geometric physically-based simulation systemscan be used for analyzing and optimizing complex millingprocesses, for example in the automotive or aerospaceindustry, where the surface quality and process efficiencyare l...Geometric physically-based simulation systemscan be used for analyzing and optimizing complex millingprocesses, for example in the automotive or aerospaceindustry, where the surface quality and process efficiencyare limited due to chatter vibrations. Process simulationsusing tool models based on the constructive solid geometry（CSG） technique allow the analysis of process forces, tooldeflections, and surface location errors resulting from five-axis machining operations. However, modeling complextool shapes and effects like runout is difficult using CSGmodels due to the increasing complexity of the shapedescriptions. Therefore, a point-based method for modelingthe rotating tool considering its deflections is presented inthis paper. With this method, tools with complex shapesand runout can be simulated in an efficient and flexibleway. The new modeling approach is applied to exemplarymilling processes and the simulation results are validatedbased on machining experiments.展开更多
文摘Geometric physically-based simulation systemscan be used for analyzing and optimizing complex millingprocesses, for example in the automotive or aerospaceindustry, where the surface quality and process efficiencyare limited due to chatter vibrations. Process simulationsusing tool models based on the constructive solid geometry（CSG） technique allow the analysis of process forces, tooldeflections, and surface location errors resulting from five-axis machining operations. However, modeling complextool shapes and effects like runout is difficult using CSGmodels due to the increasing complexity of the shapedescriptions. Therefore, a point-based method for modelingthe rotating tool considering its deflections is presented inthis paper. With this method, tools with complex shapesand runout can be simulated in an efficient and flexibleway. The new modeling approach is applied to exemplarymilling processes and the simulation results are validatedbased on machining experiments.
