### 空心涡轮叶片精铸蜡型陶芯定位元件尺寸计算方法

1. 西北工业大学 现代设计与集成制造技术教育部重点实验室, 陕西 西安 710072
• 收稿日期:2012-03-01 修回日期:2012-03-26 出版日期:2013-01-25 发布日期:2013-01-19
• 通讯作者: 汪文虎,Tel.:029-88490427,E-mail:npuwwh@nwpu.edu.cn E-mail:npuwwh@nwpu.edu.cn
• 作者简介:冯炜,男,硕士研究生。主要研究方向:计算机辅助技术,现代集成制造。Tel:029-88493232-227,E-mail:fengwei19861009@163.com;汪文虎,男,博士,教授,博士生导师。主要研究方向:计算机辅助技术,现代集成制造。Tel:029-88490427,E-mail:npuwwh@nwpu.edu.cn
• 基金资助:

国家科技支撑计划(2006BAF04B02);国家"863"计划(2006AA04Z144)

### Size Calculation Method of Ceramic Core Locators for Hollow Turbine Blade Investment Casting Wax Patterns

FENG Wei, WANG Wenhu, WANG Xiaozhong, LUO Jinhu

1. Key Laboratory of Contemporary Design and Integrated Manufacturing Technology, Ministry of Education, Northwestern Polytechnical University, Xi’an 710072, China
• Received:2012-03-01 Revised:2012-03-26 Online:2013-01-25 Published:2013-01-19
• Supported by:

National Key Technology Research and Development Program of China (2006BAF04B02); National High-tech Research and Development Program of China (2006AA04Z144)

Abstract:

This paper proposes a method for size calculation of ceramic core locators based on model matching to cope with the difficulty to precisely quantify the sizes of ceramic core locators for hollow turbine blade investment casting wax patterns. By introducing the wall thickness weighting factors into the matching model, accurate matching between the measurement results and theoretical model is realized. Based on the measured data of matched ceramic cores, a method for size calculation of ceramic core locators is developed. Finally, a batch of ceramic cores with consistent thickness deviation is divided into two groups for use in a contrast experiment. The results show that the proposed method can effectively improve wax pattern wall thickness accuracy. Therefore it provides some guidance for controlling the accuracy of hollow turbine blade.