Recent progress in research on the cutting processes of wood. A review

Recent progress in research on the cutting processes of wood is presented, particularly in regard to new methods of accomplishing an increase in volume recovery by sawmills. The suitability of modern fracture mechanics was demonstrated for the estimation of the cutting power for saws in which kerfs are different from saws used in cutting tests, and whereby the data of sawn material - such as the specific work of surface formation ( toughness) and the shear yield stress - were determined. Cutting tests were carried out on the modern frame sawing machine ( sash gang saw) for narrow-kerf sawing with the hybrid dynamically balanced driving system and elliptical teeth trajectory movement.