Chatter Suppression in turning by applying a tooling mechanism with the ability to change the tool angles

Document Type : Research Article

Authors

1 Babol Noshirvani University of Technology, Babol, Iran.

2 Malek Ashtar University of Technology

Abstract

Tool angles have a great impact on cutting mechanics and the machining parameters such as surface quality, tool life, specific cutting energy, and dynamic stability of the cutting process. One of the research topics in this field is the development of mechanisms that can be used to create more control on the machining process, such as the tool angles, simultaneously in the process. In this research, a tooling mechanism has been presented for the turning machine, which provides the ability to adjust the normal rake and clearance angles, during the turning process. This mechanism is used to develop a new active control system for chatter suppression for increasing the dynamic stability of the turning process. In this technique, the controller detects the chatter through the acceleration sensor and then reduces the clearance angle of the tool by using the mechanism, this increases the process damping and by increasing the overall damping, it suppresses the vibrations. To design the active controller, the simulation was done in the MATLAB-Simulink and then according to the simulation results, an on/off controller was designed and implemented. Then, experimental tests were performed to evaluate the performance of the chatter suppression control system. The test results showed that the proposed method can have a good effect in reducing chatter vibrations in the turning process and leads to a significant increase in the stability of the tuning process.

Keywords

Main Subjects

References

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Amirkabir Journal of Mechanical Engineering
Volume 55, Issue 4
July 2023
Pages 461-474

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