Veneer warpage deformation measurement based on 3D laser scanning technology
In this paper, the warpage of the Taxodium hybrid ‘zhongshanshan’ veneer was measured by 3D laser scanning technology. The results showed that, the deformation of this veneer was mainly due to the warpage phenomenon along the cross striation of the wood. Air-drying shrinkage clearly enlarged the length in the direction of cross striation compared to the direction of parallel grain. The air-dried veneer would incline 7-12° along the direction of the parallel axis. When peeling the wood of the Taxodium hybrid ‘zhong shan shan’, the diameter decreased, and the warpage degree of veneer increased. The average veneer warpage degree of sapwood was 21.18%, the intermediate wood was 28.20%, and the heartwood near piths was 40.88%. High resolution 3D laser scanning technology accurately, intuitively, and rapidly obtained the deformation of the veneer.