CUTTING METHOD roundwood RELEVANT some quality bands separated by concentric circles

摘要

1. A method of cutting round timber, comprising determining the boundary value separation zones, rounding, longitudinal cutting into sectors, drying and bonding of blanks, characterized in that each sector is divided into parts parallel to the edge tangent to the sector boundary of the central zone to obtain high-quality billets triangular cross-section, the remaining peripheral part of the sector divided by the tangent to the preceding year layers parallel to the workpiece propyl trapezoidal cross-section and the workpiece a curved surface having a lateral surface of the same area, the blank triangle cross section unfold relative to each other by 180 ° and fastened to each other, the workpiece trapezoidal cross-section and the workpiece with curved surfaces also unfold relative to each other by 180 ° and alternately bonded together in panel.2 wall. A method according to claim 1, characterized in that the preform of triangular cross-section and / or the workpiece trapezoidal cross-section and / or the workpiece with a curved surface before the bonding is subjected to thermal modification.