The chatter characteristics and suppression strategy of drilling hard and brittle materials based on axial-torsional coupling

Jinfeng Zhang; Zhe Wang; Chao Feng; Shuai Wang; Peisi Zhong

doi:10.1117/12.2625265

12 December 2021 The chatter characteristics and suppression strategy of drilling hard and brittle materials based on axial-torsional coupling

Jinfeng Zhang, Zhe Wang, Chao Feng, Shuai Wang, Peisi Zhong

Author Affiliations +

Proceedings Volume 12127, International Conference on Intelligent Equipment and Special Robots (ICIESR 2021); 121270F (2021) https://doi.org/10.1117/12.2625265
Event: International Conference on Intelligent Equipment and Special Robots (ICIESR 2021), 2021, Qingdao, China

Abstract

In order to improve the quality and efficiency of processing and reduce of cost of the micro holes. The two-degree-of freedom axial-torsional coupling structure dynamic model is established, considering the regenerative chatter phenomenon during the machining of large aspect ratio holes based on the macro drilling dynamics model. The nonlinear time-delay differential dynamic equation is obtained, which corresponds to the above model. The dimensionless parameters and variables are introduced to making linearity and dimensionless of the kinetic equations. The different dynamics parameters are compared and the corresponding stability limit diagrams are obtained to predict stable areas. The change trend of the stability area under various parameter is analyzed. The prediction model was verified theoretically through the time-domain response, and the influence of dynamics parameters on the machining stability was also further analyzed.

Citation Download Citation

Jinfeng Zhang, Zhe Wang, Chao Feng, Shuai Wang, and Peisi Zhong "The chatter characteristics and suppression strategy of drilling hard and brittle materials based on axial-torsional coupling", Proc. SPIE 12127, International Conference on Intelligent Equipment and Special Robots (ICIESR 2021), 121270F (12 December 2021); https://doi.org/10.1117/12.2625265

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