REVIEW OF THE CONSUMPTION OF THE RADIUS OF THE CUTTING INSTRUMENT, DURING THE SAWING LAMINATED PARTICLEBOARDS.

The focus of this study is the examination of tool wear or the causes of tool radius increase, during sawing of melamine wood panels with CNC machines. During the tests, the following materials will be used: laminated particleboard, based on the objectives of the study, for the technological sawing operation, with dimensions 2100x2800x18mm, first quality. As a cutting tool for sawing it is used the one in the shape of a disc, as in figure 4. Table 1, presents all the details of the cutting instrument, its geometry, the blade angle, the number of rotations, its material of construction etc. The examination of tool wear was measured by the direct measurement method, with the help of a measuring device called Nikon NEXIV VMR-3020 CNC Video Measuring System, with the possibility of lensing up to 270 times. While the data obtained from the measurement are presented in table no. 2, constructing an overview of the data, from the results obtained. This data was also compared by mathematical calculations, with a clear difference in consumption, between the initial radius and that after t working minutes. From all this, a mathematical model is obtained, which serves the users to choose the right instrument for the respective wood-based material, in this case carpentry boards, for the technological operation of sawing. [ABSTRACT FROM AUTHOR]