Research on Tool Path Planning for NC Machining of Freeform Surface
Hua Rui
Abstract
Hua Rui
Abstract
The three-dimensional model of NURBS free-form surface is reconstructed,the Calculation method for CL point of free-form surface and the NURBS tool path planning strategy have been given.In addition,simulation and machining to the free-form surface with linear interpolation tool path and NURBS tool path is given.It is proved that NURBS tool path can greatly enhance accuracy,improve the smoothing of the surface during NC machining,also can meet the needs of CNC machining on free-form surface.
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The three-dimensional model of NURBS free-form surface is reconstructed,the Calculation method for CL point of free-form surface and the NURBS tool path planning strategy have been given.In addition,simulation and machining to the free-form surface with linear interpolation tool path and NURBS tool path is given.It is proved that NURBS tool path can greatly enhance accuracy,improve the smoothing of the surface during NC machining,also can meet the needs of CNC machining on free-form surface.
Key concepts: Machining, Tool path, Free form, Surface (topology), Interpolation (computer graphics), Point (geometry), Path (computing), Smoothing