Taylor's Equation has proven utility for determining the
lifetime of cutting tools in the machining of metal. Whereas, Taylor's Equation
is not widespread for the prediction of wear of wood machining tools due to the
lack of appropriate coefficients of the Equation. A computer numerical control
machine was used for conventional longitudinal milling of aspen (Populus
tremula L.) wood with cutter knives of high-alloy tool steel X150CrMo12
according to European standard EN 10027-1:2016 on the cutter head. Changes in
the surface roughness characterized the wear phases of the cutting tool at two
different values of cutting velocity were obtained depending on the length of
the cutting trajectory as it is more appropriate for forecasting tool wear
compared to the time of cutting because the time depends on the feed speed.
Research showed that the achievable length of cutting trajectory until the
critical wear phase increases approximately two times from 45000 to 96000 m per
tooth when cutting velocity is increased from 20 to 40 m s-1. The equation to
predict the achievable length of cutting trajectory was obtained depending on
the cutting velocity–the main factor affecting tools wear the most. It was
noted that also other parameters of the cutting regime mostly the angular
parameters of the cutter, feed speed, chip thickness and cutting depth are affecting
the tool wear and must be included in the Equation in future research.
Author(s) Details
Andis Abele
Institute of Civil Engineering and Woodworking, Latvia University of Life
Sciences and Technologies, Jelgava, Latvia.
Please see the link:- https://doi.org/10.9734/bpi/strufp/v11/1798
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