Wear Measurement of the Cutting Tool when Cutting Medium-Density Fiberboard

Abstract

Regardless of how advanced is the technological equipment used in cutting operations, high quality cutting instruments are always a necessity. In the focus of this study is the wear of the cutting blade, namely the increase of the radius of the cutting blade. The wear of the cutting tool is measured carving MDF slabs in three dimensional CNC machines. In order to test the tool wear during the technological process of carving, first quality medium-density fiberboard slab panels of both simple surfaces, with dimensions of 2100x2800x18mm, has been used as raw material. The wear measurement is done with the direct method, through a measuring device called "Nikon NEXIV VMR-3020 CNC Video measuring System", with the possibility of lensing up to 270 times. The wear of the carving blade is measured for three effective working time periods, respectively 60, 180 and 300 minutes. The obtained results can be used to construct a mathematical model which serves the users to choose the right instrument for respective wood material.