Title :
Research on the layout optimization method for ceramic core locator in investment casting die
Author :
Yejian Yao ; Wenhu Wang ; Dezhong Zhao
Author_Institution :
Key Lab. of Contemporary Design & Integrated Manuf. Technol., Northwestern Polytech. Univ., Xi´an, China
Abstract :
In order to improve turbine blade casting wax ceramic core positioning accuracy and ensure thickness accuracy of wax pattern, the paper proposed and studied the ceramic core locator optimization. Based on rigid body kinematics, the optimization model of ceramic core positioning error transfer chain was established, and the model was solved by using greedy algorithm to achieve the optimal layout of ceramic core locators. Finally, the optimal layout was verified through the Monte-Carlo method. The results show that the optimal layout ceramic core locator layout can effectively reduce the ceramic core positioning error and improve the ceramic core positioning accuracy.
Keywords :
Monte Carlo methods; blades; ceramics; dies (machine tools); greedy algorithms; investment casting; optimisation; position control; shear modulus; turbines; waxes; Monte Carlo method; ceramic core locator layout; ceramic core positioning accuracy; ceramic core positioning error transfer chain; greedy algorithm; investment casting die; layout optimization model; rigid body kinematics; turbine blade; wax pattern thickness accuracy; Blades; Casting; Ceramics; Equations; Jacobian matrices; Layout; Mathematical model; accuracy verification; locator layout optimization; wall thickness deviation; wax pattern;
Conference_Titel :
Electronic and Mechanical Engineering and Information Technology (EMEIT), 2011 International Conference on
Conference_Location :
Harbin, Heilongjiang, China
Print_ISBN :
978-1-61284-087-1
DOI :
10.1109/EMEIT.2011.6023046
