Cutter-to-blank Boolean operation method based on region growth

The invention discloses a cutter-to-blank Boolean operation method based on regional growth, and belongs to the field of machining simulation. The method comprises the steps of obtaining a current boundary node group and an internal node group of a blank model and a next-moment boundary node group of a cutter model; finding a blade node intersected with the surface of the cutter from the current internal node group of the blank as a curved surface dimension region growth seed; searching the neighborhood of the seed node according to the boundary edge, performing curved surface dimension regiongrowth, and forming a blank new boundary point group by all found new boundary nodes; finding out a node with an external common edge from the new boundary point group to serve as a spatial dimensionregion growth seed; starting from the seed node, performing spatial dimension region growth in a region between new and old boundaries of the blank, finding out nodes needing to be converted into external nodes from internal