Journal
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
Volume 72, Issue 5-8, Pages 643-651Publisher
SPRINGER LONDON LTD
DOI: 10.1007/s00170-014-5698-6
Keywords
Toolpath; Chatter suppression; Multi-axis milling; Hollow fan blade; Cutting parameters optimization
Funding
- National Basic Research Program of China [2013CB035802]
- China National Key S&T Special Projects [2011ZX04016-031]
- China Postdoctoral Science Foundation [2012 M521804]
- 111 Project [B13044]
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Aiming at the issue of toolpath dependent machining vibration in multi-axis milling of hollow fan blades, this paper presents an optimal selection method of cutting parameters based on single-line toolpath to suppress cutting chatter. Firstly, the impact of hollow structure on the blade structural modal was analyzed by using the modal analysis method. And the unstable regions of hollow blade surface have been predicted, which were prone to induce machining deformation and vibration. Secondly, the relationship between the hollow structure and the dynamic characteristics was revealed by analyzing the dynamic responses to the different cutting positions of blade surface. Thirdly, the optimization of cutting parameters based on single-line toolpath was proposed by establishing the 3D stability lobe diagram. Finally, the feasibility and effectiveness about the analysis of dynamic characteristics and the suppression method of cutting chatter were verified by a milling experiment of hollow blade.
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