A Study of Chatter Stability Domain in Different Phases of Milling Process of Thin-Wall Component

Abstract:

Aeronautical thin-wall components are widely used in Aero-Engine, and the machining stability of the thin-wall components is a difficulty issue. In this paper, a single freedom dynamic model is set up to describe the dynamics of thin-wall milling process, and the stability of the dynamic model is analyzed with the discretization method. Then the modal parameters are gained in the different milling phases and the resonance region of spindle speed is proposed. Optimize the milling parameters with the chatter stability domain at different milling phases. The result shows that the cutting chatter can be restrained if getting the spindle speedcutting depth parameters considering the superposition area of chatter stability domains and avoiding the resonance region in the different milling phases. At last, the method is applied in Aero-Engine thin-wall blade milling, the metal remove rate increases greatly and the machining accuracy is improved greatly.

• Periodical: Advanced Materials Research (Volume 711)
• Pages: 137-142
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.711.137
• Online since: June 2013
• Authors: Wei Wei Liu, Yuan Yuan Cai, Feng Li, Xiao Yan Li, Xu Sheng Wan
• Keywords: Chatter Stability Domain, Model Parameters, Resonance Range, Thin-Wall Components

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