The Influence of Processing Conditions on the Quality of Bent Solid Wood from European Oak

Bending of solid wood from European oak is one the most demanding technological processes due to its specific structural and physical properties variability. We investigated influence moisture content (MC) stiffness, determined by NDT, as well previous drying methods on bending ability wood. The best quality was obtained with specimens bent at a least 16% quarter- or semi-quartersawn. number rejected increased slightly when HF used. Single-stage predrying final MC 8% resulted in high rejection rate (>70%) regardless technique. acceptance higher for less stiff where ratio ultrasonic velocity straight (vS) region (vB) than 0.5 (vB/vS).