面向型面精度一致性的整体叶盘砂带磨削新方法及实验研究

doi:10.7527/S1000-6893.2015.0228

材料工程与机械制造

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面向型面精度一致性的整体叶盘砂带磨削新方法及实验研究

肖贵坚, 黄云, 伊浩

重庆大学机械传动国家重点实验室, 重庆 400044

收稿日期:2015-06-19 修回日期:2015-08-12 出版日期:2016-05-15 发布日期:2015-08-28
通讯作者: 肖贵坚,Tel.:023-67669883 E-mail:xiaoguijian@126.com E-mail:xiaoguijian@126.com
作者简介:肖贵坚,男,博士研究生。主要研究方向:现代制造工艺及装备。Tel:023-67669883 E-mail:xiaoguijian@126.com;黄云,男,博士,教授,博士生导师。主要研究方向:现代制造工艺及装备,先进制造技术,智能制造与装备,机电一体化技术。Tel:023-67669333 E-mail:yunhuang@samhida.com;伊浩,男,硕士研究生。主要研究方向:机械制造及其自动化。Tel:023-67669883 E-mail:1515556950@qq.com
基金资助:
国家自然科学基金(51275545)

Experimental research of new belt grinding method for consistency of blisk profile and surface precision

XIAO Guijian, HUANG Yun, YI Hao

The State Key Laboratory of Mechanical Transmissions, Chongqing University, Chongqing 400044, China

Received:2015-06-19 Revised:2015-08-12 Online:2016-05-15 Published:2015-08-28
Supported by:
National Natural Science Foundation of China (51275545)

摘要/Abstract

摘要：

由于整体叶盘由多个叶片组成,根据"木桶定律",整体叶盘的性能和寿命取决于型面精度(型线精度和表面质量)最差的叶片。因此,在满足整体叶盘型面精度的前提下,提高各叶片型面精度一致性对其性能和寿命具有重要的影响。提出一种面向型面精度一致性的砂带磨削新方法,一方面通过砂带周期性的往复运动结合自锐式磨削原理,实现型面铣削残差层的高效去除;另一方面通过砂带周期性的自动更新,保证各叶片的型面精度在同一截面具有高一致性。阐述并建立了面向型面精度一致性的砂带磨削新方法及其磨削控制方程。在此基础上,对某航空发动机整体叶盘的11个叶片进行了砂带磨削实验,并且运用标准差对整体叶盘型面精度一致性进行定量分析。研究结果表明:整体叶盘磨削后,表面粗糙度小于0.25 μm,型线精度小于0.05 mm,同时型面精度一致性显著提高,证明了该方法的有效性。

关键词: 整体叶盘, 砂带磨削, 型线精度, 表面质量, 一致性

Abstract:

As the blisk is comprised of many blades, according to the "law of cask", its performance and life are dependent on the worst PF-precision (profile accuracy and surface quality) of blade. So, besides meeting the requirement of the PF-precision, it is important to improve the PF-precision consistency of blisk blade. The new belt grinding method for the consistency of the blisk profile and surface precision is introduced in this paper, the reciprocating motion and self-sharpening grinding are used to efficiently realize material removal, and at the same time, the method of automatic update periodic is used to improve the PF-precision consistency. The new method of belt grinding for the PF-precision of the blisk is illustrated, the consistency control equation for the PF-precision of the blisk is established, and then, the belt grinding experiment is applied to 11 blades of the aeroengine blisk. Meanwhile, the standard deviation is used to analyze the consistency of PF-precision of blisk. The results show that the surface roughness is less than 0.25 μm, the profile accuracy is less than 0.05 mm and the PF-precision consistency is significantly improved.

Key words: blisk, belt grinding, profile precision, surface quality, consistency

中图分类号:

V261.2⁺5

肖贵坚, 黄云, 伊浩. 面向型面精度一致性的整体叶盘砂带磨削新方法及实验研究[J]. 航空学报, 2016, 37(5): 1666-1676.

XIAO Guijian, HUANG Yun, YI Hao. Experimental research of new belt grinding method for consistency of blisk profile and surface precision[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2016, 37(5): 1666-1676.

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E-mail：hkxb@buaa.edu.cn

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主管单位：中国科学技术协会主办单位：中国航空学会北京航空航天大学

面向型面精度一致性的整体叶盘砂带磨削新方法及实验研究

Experimental research of new belt grinding method for consistency of blisk profile and surface precision

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