Kiyko O. Scientific and technical bases of calibration-sanding process of particle boards by hard abrasive tool

The subject of the research is the calibration-sanding process of particle boards by a hard abrasive tool; the overall aim is to develop the scientific and technical basis for the calibration-sanding process of particle boards by a hard abrasive tool. The novelty lies in suggesting and realizing the concept of the objective and statistical design for the research of the calibration-sanding process of particle boards by a hard abrasive tool, as well as in putting forward and substantiating the scientific position on the necessity of the statistical authentication of materials' thickness in the process of abrasive treatment for the purpose of their calibration-sanding. On the basis of complex theoretical and experimental research the paper determines basic static and dynamic errors of the process of unilateral and bilateral calibration-sanding, length of abrasive treatment for the period of firmness and wear of an abrasive tool, which enabled to develop the first system of simulation models for the calibration-sanding process of particle boards by a hard abrasive tool for the purpose of the prognostication of defectless abrasive treatment and its optimization. The research establishes certain regularities of the calibration-sanding process of particle boards by a hard abrasive tool and defines conditions for the optimization of abrasive treatment parameters. Results: the paper formulates basic principles of the practical realization of the regulation of statistical characteristics of particle boards' thickness, adjusting values of the calibration-sanding process, values of speed of cutting and speed of serving, hardness and graininess of abrasive tools for the purpose of boosting the efficiency of the abrasive treatment process and grounds a scheme of placing abrasive cylinders. The results have been implemented at three woodworking enterprises.