TY - JOUR
T1 - Runout effects in milling
T2 - Surface finish, surface location error, and stability
AU - Schmitz, Tony L.
AU - Couey, Jeremiah
AU - Marsh, Eric
AU - Mauntler, Nathan
AU - Hughes, Duke
N1 - Funding Information:
The authors gratefully acknowledge partial financial support for this research from the National Science Foundation (DMI-0238019) and Office of Naval Research (2003 Young Investigator Program). The authors also wish to recognize the contributions of M. Tummond in the completion of Figs. 12 and 13 .
PY - 2007/4
Y1 - 2007/4
N2 - This paper investigates the effect of milling cutter teeth runout on surface topography, surface location error, and stability in end milling. Runout remains an important issue in machining because commercially-available cutter bodies often exhibit significant variation in the teeth/insert radial locations; therefore, the chip load on the individual cutting teeth varies periodically. This varying chip load influences the machining process and can lead to premature failure of the cutting edges. The effect of runout on cutting force and surface finish for proportional and non-proportional tooth spacing is isolated here by completing experiments on a precision milling machine with 0.1 μm positioning repeatability and 0.02 μm spindle error motion. Experimental tests are completed with different amounts of radial runout and the results are compared with a comprehensive time-domain simulation. After verification, the simulation is used to explore the relationships between runout, surface finish, stability, and surface location error. A new instability that occurs when harmonics of the runout frequency coincide with the dominant system natural frequency is identified.
AB - This paper investigates the effect of milling cutter teeth runout on surface topography, surface location error, and stability in end milling. Runout remains an important issue in machining because commercially-available cutter bodies often exhibit significant variation in the teeth/insert radial locations; therefore, the chip load on the individual cutting teeth varies periodically. This varying chip load influences the machining process and can lead to premature failure of the cutting edges. The effect of runout on cutting force and surface finish for proportional and non-proportional tooth spacing is isolated here by completing experiments on a precision milling machine with 0.1 μm positioning repeatability and 0.02 μm spindle error motion. Experimental tests are completed with different amounts of radial runout and the results are compared with a comprehensive time-domain simulation. After verification, the simulation is used to explore the relationships between runout, surface finish, stability, and surface location error. A new instability that occurs when harmonics of the runout frequency coincide with the dominant system natural frequency is identified.
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U2 - 10.1016/j.ijmachtools.2006.06.014
DO - 10.1016/j.ijmachtools.2006.06.014
M3 - Article
AN - SCOPUS:33846607370
VL - 47
SP - 841
EP - 851
JO - International Journal of Machine Tools and Manufacture
JF - International Journal of Machine Tools and Manufacture
SN - 0890-6955
IS - 5 SPEC. ISS.
ER -