TY - GEN
T1 - A geometrically comprehensive approach to modeling dynamic cutting forces in turning
T2 - ASME International Manufacturing Science and Engineering Conference, MSEC2008
AU - Cardi, Adam A.
AU - Bement, Matthew T.
AU - Liang, Steven Y.
PY - 2009
Y1 - 2009
N2 - Present chatter models in turning lack physical insight because they do not model the process in a geometrically rigorous manner. Many of the models are linear and produce unrealistic, unbounded vibration amplitude growth after the onset of chatter. Those that are nonlinear are typically reverse engineered in order to predict bounded vibration. The current approach models the forces in machining due to chip formation, plowing, and interference between the flank of the cutting tool and the machined workpiece surface in a geometrically comprehensive fashion. Additionally the effects of strain, strain rate and temperature on the chip formation process are captured. In doing so, accurate predictions can be made for both the occurrence of chatter and its vibration amplitude growth over time. The proposed model is validated with machining experiments on a compliant workpiece to explore the effect of tool nose radius on chatter.
AB - Present chatter models in turning lack physical insight because they do not model the process in a geometrically rigorous manner. Many of the models are linear and produce unrealistic, unbounded vibration amplitude growth after the onset of chatter. Those that are nonlinear are typically reverse engineered in order to predict bounded vibration. The current approach models the forces in machining due to chip formation, plowing, and interference between the flank of the cutting tool and the machined workpiece surface in a geometrically comprehensive fashion. Additionally the effects of strain, strain rate and temperature on the chip formation process are captured. In doing so, accurate predictions can be made for both the occurrence of chatter and its vibration amplitude growth over time. The proposed model is validated with machining experiments on a compliant workpiece to explore the effect of tool nose radius on chatter.
UR - http://www.scopus.com/inward/record.url?scp=77951613546&partnerID=8YFLogxK
U2 - 10.1115/MSEC_ICMP2008-72313
DO - 10.1115/MSEC_ICMP2008-72313
M3 - Conference contribution
AN - SCOPUS:77951613546
SN - 9780791848517
T3 - Proceedings of the ASME International Manufacturing Science and Engineering Conference, MSEC2008
SP - 139
EP - 148
BT - Proceedings of the ASME International Manufacturing Science and Engineering Conference, MSEC2008
Y2 - 7 October 2008 through 10 October 2008
ER -