Variation of the dynamic characteristics and machining stability of a milling tool with feeding orientation

K. D. Wu, Y. J. Chen, C. T. Lin, J. P. Hung

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

This study presents the evaluation of the machining stabilities of a milling machine tool. For this purpose, we first conducted the vibration tests on the spindle tool to assess the tool tip frequency response functions along the principal modal axis. And then, basing on the orientation dependent stability analysis model proposed in this study, we evaluated the variation of the dynamic characteristics of the spindle tool and the corresponding machining stabilities at a specific feeding direction. Following the stability analysis model, the limited axial cutting depths for stable machining within the whole interested feeding directions were obtained. Current results demonstrate that the stability boundaries and limited axial cutting depth of a specific cutter were affected to vary with the changing of the feeding direction and the feeding height of spindle head. There critical axial depth can be increased by 21% when the spindle head was moved from lower to a higher position. The predicted stability boundary also suggests the desired machining condition to avoid the occurrence of the chattering during the countering machining. This also indicates the strength or weakness of the structure characteristics of the spindle tool system, giving the ways for improving the machining performance or dynamic characteristics of the machine tool.

Original languageEnglish
Title of host publication2015 IFToMM World Congress Proceedings, IFToMM 2015
PublisherNational Taiwan University
ISBN (Electronic)9789860460988
DOIs
StatePublished - 2015
Event14th International Federation for the Promotion of Mechanism and Machine Science World Congress, IFToMM 2015 - Taipei, Taiwan
Duration: 25 Oct 201530 Oct 2015

Publication series

Name2015 IFToMM World Congress Proceedings, IFToMM 2015

Conference

Conference14th International Federation for the Promotion of Mechanism and Machine Science World Congress, IFToMM 2015
Country/TerritoryTaiwan
CityTaipei
Period25/10/1530/10/15

Keywords

  • Dynamic characteristics
  • Machining stability
  • Milling machine

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