Abstract
In order to high-quality manufacture the hydro turbine blade efficiently, a series of innovative digital techniques have been developed. It includes 3-D modeling based on machining requirement, multi-axis tool path planning and generating, tool axis orientation for multi-axial NC machining of blades, machining simulation environment establishment, computer simulation for machining of a large blade to verify the gouges and collisions between machine tool, blade and fixtures. The techniques of multi-axis digital machining simulation for large-size blades can be directly applied into digital simulation processing of other sculptured surface parts, and it will completely change the traditional design and manufacturing process of turbine.
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