On-Machine Measurement Technology and High Quality CNC Machining of Aero-Engine Difficult Machining Parts

WAN Neng; SHEN Peng; CHANG Zhiyong; WANG Zhan; FENG Yong

doi:10.16080/j.issn1671-833x.2022.13.026

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On-Machine Measurement Technology and High Quality CNC Machining of Aero-Engine Difficult Machining Parts

更新时间：2025-10-30

- On-Machine Measurement Technology and High Quality CNC Machining of Aero-Engine Difficult Machining Parts
- Aeronautical Manufacturing Technology Vol. 65, Issue 13, Pages: 26-34(2022)
- 作者机构：
  
  1. 西北工业大学,西安,710072
  2. 中国航发西安航空发动机有限公司,西安,710021
- 作者简介：
- 基金信息：
- DOI：10.16080/j.issn1671-833x.2022.13.026
  CLC：
- Published：2022
- 稿件说明：
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万能，沈鹏，常智勇，王展，冯咏. 航空发动机难加工零件的机内测量技术与高品质数控加工[J]. 航空制造技术, 2022, 65(13): 26-34.

WAN Neng,SHEN Peng，CHANG Zhiyong，WANG Zhan，FENG Yong . On-Machine Measurement Technology and High Quality CNC Machining of Aero-Engine Difficult Machining Parts[J]. Aeronautical Manufacturing Technology, 2022, 65(13): 26-34.
万能，沈鹏，常智勇，王展，冯咏. 航空发动机难加工零件的机内测量技术与高品质数控加工[J]. 航空制造技术, 2022, 65(13): 26-34. DOI： 10.16080/j.issn1671-833x.2022.13.026.

WAN Neng,SHEN Peng，CHANG Zhiyong，WANG Zhan，FENG Yong . On-Machine Measurement Technology and High Quality CNC Machining of Aero-Engine Difficult Machining Parts[J]. Aeronautical Manufacturing Technology, 2022, 65(13): 26-34. DOI： 10.16080/j.issn1671-833x.2022.13.026.

摘要

加工精度与加工效率高且一致性好是高品质加工的两个重要特征。以机匣、涡轮盘、整体叶盘等为代表的航空发动机难加工零件因刚度弱、切削力大、精度要求高等原因，很难实现高品质加工。数控机床机内测量简称机内测量，通过自动测量装夹在机床上的工件，可以自动发现制造特征的定位偏差或加工误差进而补偿加工。因此，应用机内测量技术能够有效提高航空发动机难加工零件的加工品质。分析了航空发动机难加工零件的特点，讨论了机内测量技术在航发高品质加工中的应用场景、研究热点，并阐明了其应用原理。以航发涡轮盘榫槽边缘的倒圆加工为案例，通过机内测量榫槽边缘的各向偏差改良了传统工艺，实现了倒圆的补偿加工。最后指出了机内测量在航发难加工零件制造中的探索方向。

Abstract

High machining accuracy

consistency and efficiency are important characteristics of high-quality machining. The difficult-to-machined parts of aero-engine are represented by casing

turbine disc and blisk. Due to the weak rigidity of workpiece

large cutting force and high precision requirement

they are difficult to realize high quality machining. Measurement in the CNC machine tool

also known as on-machine measurement

can automatically measure the workpiece clamped on the machine tool and find manufacturing characteristics of positioning deviation or processing error

and then carry out compensation processing. Therefore

the application of on-machine measurement technology can effectively improve the machining quality of aero-engine parts. This paper analyzes the characteristics of the difficult-to-machined parts of aero-engine

and the application scenarios and research hot spots of on-machine measurement technology are expounded. In further

the application principle of on-machine measurement technology in high quality machining of aero-engine is expounded. A case study is taken for the edge round of the tenon groove of turbine disc. The deviations of the edge are measured in the machine tool to realize the compensation processing of the edge round. By this way

the traditional processing is improved. Finally

the exploration direction of the on-machine measurement in the aero-engine fabrication is pointed out.

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