Modeling and multicriterial optimization of the mortise forming process in pine wood blanks

Abstract The forming of the joint profile is an important stage in technological process manufacturing joints for wood splicing. A promising direction improving this technology development waste-free methods formation high-quality finger using technique local pressing longitudinal direction. introduction into production requires a reasonable choice parameters modes. One most output parameter hardness mortise bottom, together with force and depth densified zone. first task research model describing impact modes on bottom. second determination at which resulting parameters, or functions (pressing force, zone, bottom) acquire optimal values. Data processing, their statistical analysis, obtaining regression determining were carried out Statistica software package. search extreme values compromise solution finding rational generalized reduced gradient method realized Excel Solver add-in. predictive was obtained bottom depending state pressed mortise. Rational input factors (moisture content, width mortises) expected pine blanks determined. make it possible to recommend end mortises industrial environment. objective function has potential decrease increase length. This result can be used improve strength characteristics adhesive multiple tenons.