Abstract
We propose a method which uses interference-free tool paths to predict and compensate for deformation error during the spiral milling of blades. Firstly, a finite element simulation of the blisk blade milling process was conducted using an interference-free spiral milling NC machining tool path based on the curvature attribute of the blade twisted surface, observing the variation in blade milling error under different processing parameters and yielding a surface quality variation law. Next, the model was corrected by combining this error prediction data with precision design requirements, and a blade deformation error compensation scheme was suggested. Finally, an interference-free processing program containing the error compensation information was applied to carry out another blade milling simulation and a blisk milling experiment. The results showed that both the blade deformation error and the surface quality satisfied design requirements, while the accuracy of the simulation was verified.
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Wang, MH., Sun, Y. Error prediction and compensation based on interference-free tool paths in blade milling. Int J Adv Manuf Technol 71, 1309–1318 (2014). https://doi.org/10.1007/s00170-013-5535-3
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DOI: https://doi.org/10.1007/s00170-013-5535-3