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

研究成果: 書貢獻/報告類型會議論文篇章同行評審

摘要

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.

原文???core.languages.en_GB???
主出版物標題2015 IFToMM World Congress Proceedings, IFToMM 2015
發行者National Taiwan University
ISBN(電子)9789860460988
DOIs
出版狀態已出版 - 2015
事件14th International Federation for the Promotion of Mechanism and Machine Science World Congress, IFToMM 2015 - Taipei, Taiwan
持續時間: 25 10月 201530 10月 2015

出版系列

名字2015 IFToMM World Congress Proceedings, IFToMM 2015

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???event.eventtypes.event.conference???14th International Federation for the Promotion of Mechanism and Machine Science World Congress, IFToMM 2015
國家/地區Taiwan
城市Taipei
期間25/10/1530/10/15

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