Influence of the tooth's geometry on the bandsaw's cutting power for callycophyllum spruceanum wood

Cárdenas M.Á.M.; Muro R.A.M.; Mora H.E.G.; Klitzke R.J.; da Rocha M.P. · Scientia Forestalis/Forest Sciences (2021) · DOI: 10.18671/scifor.v49n130.19

Resumen

The purpose of this work was to evaluate the effect of two bandsaw tooth models on the cutting power for the Callycophyllum spruceanum (capirona) wood, originated from a 20-year-old plantation in Ucayali-Peru. The cutting power was measured during the resaw of 12 blocks of the wood under study, using two tooth shapes and three chip thicknesses. Additionally, for each resawed block, its moisture content, basic density, Janka side hardness, and silica content were determined to characterize the wood under study. The results proved that the tooth profile, the chip thickness, and the level of the commercial stem height significantly affected the useful cutting power, although the last factor did not have any interaction with the tooth profile nor with the chip thickness. They also have shown that cutting with medium and thick chip thicknesses decreases the useful power when the tooth shape is changed from hook to skip. In summary, the model called skip tooth stood out in comparison with the hook tooth because it saves energy during the resaw of a type of wood that is hard, fine-grained, and of high basic density, such as the one studied herein.

Instituciones: Universidad Nacional Agraria La Molina