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

Volume

6

fYear

2011

fDate

12-14 Aug. 2011

Firstpage

3043

Lastpage

3047

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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/EMEIT.2011.6023046

Filename

6023046