Determining the parameters of wood machinability as a function of tangential cutting force during the process of machining wood by routing

Abstract

Machinability has been defined, in a general way, as an ability of a certain structural material to be machined by cutting or deformation through common, economical production techniques and technologies. However, a significant disadvantage of this definition is that it does not define the way in which this ability (machinability) is quantified and measured. This research deals with with ways of determining numerical values of parameters of machinability during the process of machining oak wood by longitudinal routing. In order to determine the factors of machinability in the function of tangential cutting force the authors used multifactor orthogonal linear plan of experiment. Analyzing the position of straight lines in the given diagrams and the values of the exponents in the model the following can be concluded: Average tangential cutting force increases with the increase of any of the analyzed factors; With regard to intensity, cutting depth has a greater effect on the cutting force; If the cutting depth increases, the increase of cutting force is faster when feed per edge is greater. If the feed per edge is increased, the increase of tangential cutting force is more significant when the value of cutting depth is greater.