Title: Study on method and experiment for blisk by robotic abrasive belt grinding

Authors: Kangkang Song; Guijian Xiao; Shulin Chen; Xuetao Liu; Yun Huang

Addresses: College of Mechanical and Vehicle Engineering, Chongqing University, Chongqing, 400044, China ' College of Mechanical and Vehicle Engineering, Chongqing University, Chongqing, 400044, China ' College of Mechanical and Vehicle Engineering, Chongqing University, Chongqing, 400044, China ' College of Mechanical and Vehicle Engineering, Chongqing University, Chongqing, 400044, China ' College of Mechanical and Vehicle Engineering, Chongqing University, Chongqing, 400044, China

Abstract: Aiming at the difficulty of ensuring the consistency of batch processing profile, and the difficulty of improving the surface grinding quality and grinding efficiency in the precision grinding of aero-engine blisk, a precision and high-efficiency grinding method is proposed for the blisk by robotic abrasive belt grinding. In this paper, the manufacturability of the robotic belt grinding of the blisk is analysed, the experimental device and method of robotic abrasive belt grinding of the blisk are introduced in detail, and the experimental results is analysed and discussed. The experimental results show that the combination of UG software and RobotStudio software can effectively solve the problems of low efficiency of online programming, poor accuracy, and uneven material removal. Compared with manual grinding, the grinding efficiency is increased by 57.3%. The roughness of the uniformly distributed areas in the experiment is all below Ra 0.4 μm, the average surface roughness can reach Ra 0.31 μm, and the standard deviation is 0.05 μm. After robotic abrasive belt grinding, there is no damage to blisk body, and the grinding area is smooth and has a natural transition. The blisk blades after grinding have good consistency, which effectively removes milling cutter marks and meets the requirements of machining profile accuracy.

Keywords: aero-engine blisk; robot machining; abrasive belt grinding; ABG; grinding quality.

DOI: 10.1504/IJAT.2022.128049

International Journal of Abrasive Technology, 2022 Vol.11 No.2, pp.103 - 118

Received: 23 Jun 2022
Accepted: 30 Jul 2022
Published online: 04 Jan 2023 *

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