航空学报 > 2016, Vol. 37 Issue (11): 3535-3545   doi: 10.7527/S1000-6893.2016.0009

砂布轮柔性抛光力的建模与参数优化

淮文博, 唐虹, 史耀耀, 蔺小军   

  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, 西安 710072
  • 收稿日期:2015-12-21 修回日期:2016-01-04 出版日期:2016-11-15 发布日期:2016-01-30
  • 通讯作者: 史耀耀,男,博士,教授,博士生导师。主要研究方向:机电控制自动化、加工表面光整技术。Tel.:029-88492851,E-mail:shiyy@nwpu.edu.cn E-mail:shiyy@nwpu.edu.cn
  • 作者简介:淮文博,男,博士研究生。主要研究方向:机械电子、复杂曲面自适应抛光技术。E-mail:qjjxk@sohu.com;唐虹,男,教授,博士生导师。主要研究方向:机电控制与自动化。E-mail:tanghong@nwpu.edu.cn;史耀耀,男,博士,教授,博士生导师。主要研究方向:机电控制自动化、加工表面光整技术。Tel.:029-88492851,E-mail:shiyy@nwpu.edu.cn;蔺小军,男,博士,高级工程师,硕士生导师。主要研究方向:精密几何测量、CAD/CAM。Tel.:029-88460426,E-mail:linxj@nwpu.edu.cn
  • 基金资助:

    国家科技重大专项(2015ZX04001003)

Modelling and parameter optimization of flexible polishing force for abrasive cloth wheel

HUAI Wenbo, TANG Hong, SHI Yaoyao, LIN Xiaojun   

  1. The Key Laboratory of Contemporary Design and Integrated Manufacturing Technology, Ministry of Education, Northwestern Polytechnical University, Xi'an 710072, China
  • Received:2015-12-21 Revised:2016-01-04 Online:2016-11-15 Published:2016-01-30
  • Supported by:

    National Science and Technology Major Projects (2015ZX04001003)

摘要:

砂布轮柔性较大可以实现航空发动机叶片微面切触自适应抛光,提高叶片表面完整性和力学性能。抛光力是影响抛光表面完整性的关键参数,通过单因素试验分析确定了砂布轮抛光力的影响参数及其影响规律,通过正交试验和极差法确定了影响抛光力的主要参数是砂布轮的压缩量和转速;利用二元二次回归正交试验得出了抛光力的预测模型,利用该模型分析了抛光力预测误差变化趋势,明确了不同转速下抛光力主要影响参数的稳定域;整体叶盘的抛光试验表明:通过合理控制抛光力,可以实现表面粗糙度小于0.4 μm的抛光效果,且效率比人工提高20%。

关键词: 叶片, 砂布轮, 抛光力, 建模, 参数优化

Abstract:

Abrasive cloth wheel with large flexibility can realize micro-surface contact and adaptive polishing to improve the surface integrity and mechanical properties of the aero-engine blade. Because the polishing force is the key parameter influencing the integrity of polishing surface, influence parameters for polishing force of abrasive cloth wheel are determined and its influence regularities are analyzed by single-factor experiment. The compression size and the rotation speed of abrasive cloth wheel are determined as the main influence parameters for the polishing force by the orthogonal experiment and range analysis. Prediction model of the polishing force is obtained by using binary quadratic regression orthogonal experiment. The variation trend of the polishing force prediction error is analyzed by using the model, and the stability domain of the main influence parameters is determined at different rotation speeds. The results of blisk polishing experiment show that the ideal polishing results of surface roughness less than 0.4 μm and polishing efficiency higher by 20% than manual polishing can be achieved by reasonable control of the polishing force.

Key words: blades, abrasive cloth wheel, polishing force, modelling, parameters optimization

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