Determining Face-Milling Radial Rake Angle to Reduce Exit Edge Tear-Out in Yellow-Poplar

Face milling as well as other machining processes frequently cause edge tear-out as the tool edge leaves the cut. Yellow-poplar conditioned at 8 percent moisture content was face milled so that the frequency of exit edge tear-out could be determined with respect to the radial rake angle. Exit edge tear-out was related to radial rake angle with a logistic function which could accurately predict the frequency of tear-out. The method can prescribe face-milling conditions to reduce edge tear-out and may be applied to many wood machining processes.

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