08 - Manufacturing and Supply Chain Management
REDESIGN AND MACHINING OF LEADING EDGE OF TRANSONIC COMPRESSOR BLADE IN ROBOTIC GRINDING OPERATION
H. Li¹, L. Zou¹, W. Wang¹, L. Gui¹; ¹Chongqing University, China
Refined design and machining of the blade, especially the leading edge (LE) are two key steps in determining its aerodynamic performance. However, design and processing in past studies lacked sufficient correlation and feedback. In this work, for the enhancement of performance and size accuracy, the LE profile of a transonic compressor blade is redesigned and machined in robotic blade grinding operation. The LE profile is designed based on clamped B-spline curve to achieve curvature continuous. The redesigned and baseline LE shapes are then evaluated in terms of curvature distribution and aerodynamic performance. From the perspective of robotic grinding, the number of grinding paths affecting the machining efficiency is analyzed for various LE profiles based on toolpath planning algorithms. Secondly, the machining accuracy is predicted based on the dwell time control method.