Experimental Study of Ultrasound-Assisted Reaming of Carbon Fiber-Reinforced Plastics/Titanium Alloy Stacks

Author:

Liu Shengtong1,Kang Renke1,Qin Yan1,Dong Zhigang1ORCID,Guo Xiaoguang1,Wang Yidan1ORCID

Affiliation:

1. State Key Laboratory of High-Performance Precision Manufacturing, Liaoning Province, Dalian University of Technology, Dalian 116024, China

Abstract

Carbon fiber-reinforced plastic/titanium alloy (CFRP/Ti) stacks are widely used in the aerospace field based on their high strength to weight ratio and heat resistance. High-quality bolt hole assembly is critical for the safety of the aerospace industry. Reaming is a crucial process in precision machining and is extensively used to improve the quality of bolt holes. Due to the different properties of the material, machining with conventional reaming (CR) presents some challenges, such as tolerance variations across the hole group and difficulty in controlling thrust. In this paper, ultrasonic vibration is applied to the reaming process. A geometrical model of ultrasonic vibration reaming (UVR) was established to analyze its kinematic law. UVR experiments on CFRP/Ti stacks were carried out to study the influence of different ultrasonic amplitudes on reaming thrust and the influence of tool speed on thrust, dimensional accuracy, and surface roughness under optimal ultrasonic amplitude. The average thrust forces in UVR decreased by over 57% (Ti) and 40% (CFRP), respectively, compared to CR. The roughness of CFRP is reduced by 20% with UVR and 28% for titanium alloys. The surface topography of the holes is significantly improved by UVR. This work guides the manufacture of high-quality bolt holes for CFRP/Ti stacks.

Funder

National Natural Science Foundation of China

High Level Talents Innovation Plan of Dalian

Publisher

MDPI AG

Subject

Fluid Flow and Transfer Processes,Computer Science Applications,Process Chemistry and Technology,General Engineering,Instrumentation,General Materials Science

Cited by 3 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

1. Simulation and experimental research on longitudinal-torsional ultrasonic vibration drilling of CFRP/Ti laminates;Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture;2024-04-24

2. Numerical study on the heat effect on the drilling damage of Ti/CFRP stacks;Polymer Composites;2024-04-08

3. Ultrasonic assisted pecking drilling process for CFRP/Ti laminated materials;Journal of Manufacturing Processes;2023-12

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