TY - GEN
T1 - Chatter suppression in parallel turning with unequal pitch using observer based cutting force estimation
AU - Sakata, Shinya
AU - Kadota, Takashi
AU - Yamada, Yuki
AU - Nakanishi, Kenichi
AU - Yoshioka, Hayato
AU - Suzuki, Norikazu
AU - Kakinuma, Yasuhiro
N1 - Funding Information:
This work was supported by SIP Innovative Design and Production Technology Project commissioned from New Energy and Industrial Technology Development Organization (NEDO).
Publisher Copyright:
© Copyright 2017 ASME.
PY - 2017
Y1 - 2017
N2 - Parallel turning attracts attention as one of the important technologies for the multi-tasking machine tools. This is because there is a potential to enhance the stability limits compared to turning operation using single tool when cutting conditions are properly selected. Although stability prediction models for parallel turning have been developed in recent years, in-process monitoring technique of chatter is almost out of focus. In this study, to suppress chatter vibration, unequal pitch turning method was proposed. In this method, the upper tool was controlled based on optimum pitch angle calculated from spindle speed and chatter frequency. Chatter frequency was identified from estimated cutting force by disturbance observer. From the result of parallel turning test, it is clear that chatter vibration can be suppressed by controlling the upper tool based on optimum pitch angle.
AB - Parallel turning attracts attention as one of the important technologies for the multi-tasking machine tools. This is because there is a potential to enhance the stability limits compared to turning operation using single tool when cutting conditions are properly selected. Although stability prediction models for parallel turning have been developed in recent years, in-process monitoring technique of chatter is almost out of focus. In this study, to suppress chatter vibration, unequal pitch turning method was proposed. In this method, the upper tool was controlled based on optimum pitch angle calculated from spindle speed and chatter frequency. Chatter frequency was identified from estimated cutting force by disturbance observer. From the result of parallel turning test, it is clear that chatter vibration can be suppressed by controlling the upper tool based on optimum pitch angle.
KW - Chatter
KW - Multi-tasking machine tool
KW - Observer
KW - Parallel turning
KW - Sensorless
KW - Suppression
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U2 - 10.1115/MSEC2017-3054
DO - 10.1115/MSEC2017-3054
M3 - Conference contribution
AN - SCOPUS:85027886019
T3 - ASME 2017 12th International Manufacturing Science and Engineering Conference, MSEC 2017 collocated with the JSME/ASME 2017 6th International Conference on Materials and Processing
BT - Manufacturing Equipment and Systems
PB - American Society of Mechanical Engineers
T2 - ASME 2017 12th International Manufacturing Science and Engineering Conference, MSEC 2017 collocated with the JSME/ASME 2017 6th International Conference on Materials and Processing
Y2 - 4 June 2017 through 8 June 2017
ER -