Abstract
Precision forging is a choice for compressor blade fabrication. Pressure and suction surfaces could be forged to yield design requirements but the blade edge could not. A localization for machining blade edge, considering forging deformation and surface continuity, is discussed in this paper. Different from making machining allowance more balance in past researches, minimizing the difference between machined surface and design surface is adopted. Except machining allowance constraint, new constraints about form tolerance and geometry continuity are built up for localization. As a model for generating tool path, the machining surface of the blade edge is determined by adjusting a group of section curves under proposed constraints. At last, a precision forging blade is applied to verify the proposed localization method.
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