首页 | 本学科首页   官方微博 | 高级检索  
     


An investigation of the dynamic absorber effect in high-speed machining
Authors:G.S. Duncan   M.F. Tummond  T.L. Schmitz  
Affiliation:Department of Mechanical and Aerospace Engineering, University of Florida, Gainesville, FL 32611, USA
Abstract:In order to achieve increased material removal rates in high-speed machining, stable cutting conditions may be selected based on the system dynamics. In this paper, we apply Receptance Coupling Substructure Analysis to develop models for a stacked flexure setup and a spindle-holder–tool assembly in order to investigate the ‘dynamic absorber effect’ that can improve the system dynamic stiffness and, therefore, increase the critical stability limit in machining. The dynamic absorber effect results from an interaction between modes associated with the individual substructures, e.g. the spindle-holder and tool in the spindle-holder–tool assembly. Experimental results are provided for: (1) a two degree-of-freedom stacked flexure assembly; and (2) a machining center. These results can be considered in the selection of assembly parameters, such as tool overhang length, as well as in the design of spindle, holder, and tool components in order to improve dynamic stiffness and, consequently, material removal rates.
Keywords:High-speed machining   Tuned damper   Receptance coupling substructure analysis   Flexure
本文献已被 ScienceDirect 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号