Skip to content
Licensed Unlicensed Requires Authentication Published by De Gruyter October 19, 2013

A theoretical and experimental study of the circular sawing process

Lisbeth M. Hellström, Sven-Olov Biller, Sverker Edvardsson and Per A. Gradin
From the journal Holzforschung


To gain further insight into the energy dissipation during the wood sawing process, a theoretical model has been developed. The model is based on the assumption that there are two basic causes for energy dissipation during sawing: the creation of a new surface and the compression of material below a saw tooth. It is assumed that both contributions can be dependent on the cutting angle (the angle between the fiber direction and the tangent to the path followed by a saw tooth) because a saw tooth changes its angle of attack during its way through a log. To determine this dependence of the dissipation on the cutting angle, a series of experiments with pine plank sawing were performed by means of different feeding rates and cutting angles while the electrical power supplied to the saw was measured. The parameters in the theoretical model were derived from the experimental findings. Finally, two tests were carried out under different conditions with respect to thickness and cutting angles and the validity of the model was confirmed concerning the prediction of the electrical power consumption.

Corresponding author: Lisbeth M. Hellström, Fibre Science and Communication Network, Department of Natural Sciences, Mid Sweden University, Holmgatan 10, SE-851 70 Sundsvall, Sweden, e-mail:

Lee Kristoffer Kramberg at Andritz Iggesund Tools AB is greatly acknowledged for his assistance and support during the sawing trials.




Aguilera, A. (2011) Cutting energy and surface roughness in medium density fibreboard rip sawing. Eur. J. Wood Prod. 69:11–18.10.1007/s00107-009-0396-zSearch in Google Scholar

Aguilera, A., Martin, P. (2001) Machining qualification of solid wood of Fagus sylvatica L. and Picea excelsa L.: cutting force, power requirements and surface roughness. Holz Roh- Werkst. 59:483–488.10.1007/s001070100243Search in Google Scholar

Aguilera, A., Meausoone, P.J., Martin, P. (2000) Wood material influence in routing operations: the MDF case. Holz Roh- Werkst. 58:278–283.10.1007/s001070050425Search in Google Scholar

Beer, P., Sinn, G., Gindl, M., Tschegg, S. (2004) Work of fracture of chips formation during linear cutting of particle-board. J. Mater. Process. Technol. 159:224–228.Search in Google Scholar

Costes, J.P., Ko, P.L., Ji, T., Decès-Petit, C., Altintas, Y. (2004) Orthogonal cutting mechanics of maple: modelling a solid wood-cutting process. J. Wood Sci. 50:28–34.10.1007/s10086-003-0527-9Search in Google Scholar

Eyma, F., Méausoone, P.J., Larricq, P.M., Marchal, R., 2005. Utilization of a dynamometric pendulum to estimate cutting forces involved during routing. Comparison with actual calculated values. Ann. For. Sci. 62:441–447.10.1051/forest:2005040Search in Google Scholar

Kivimaa, E. (1950) Cutting force in wood-working. The State Institute for Technical Research, Finland, Publ. 18.Search in Google Scholar

Lusth, H.U.S., Gradin, P.A., Hellström, L.M. (2012) The dependency of energy consumption on cutting angles in the canter chipping process. Nord. Pulp Pap. Res. J. 65:886–889.Search in Google Scholar

Lusth, H., Gradin, P.A., Hellström, L.M. (2013). A theoretical model for the prediction of energy consumption during the chipper canter process. Nord. Pulp Pap. Res. J.. 28: 211–215.Search in Google Scholar

Marchal, R., Mothe, F., Denaud, L.-E., Thibaut, B., Bleron, L. (2009) Cutting forces in wood machining – basics and applications in industrial processes. A review COST Action E35 2004–2008: wood machining – micromechanics and fracture. Holzforschung 63:157–167.10.1515/HF.2009.014Search in Google Scholar

Orlowski, K.A., Palubicki, B. (2009) Recent progress in research on the cutting processes of wood. A review COST Action E35 2004–2008: wood machining – micromechanics and fracture. Holzforschung 63:181–185.10.1515/HF.2009.015Search in Google Scholar

Palmqvist, J., Lenner, M., Gustafsson, S.I. (2005) Cutting-forces when up-milling in beech. Wood Sci. Technol. 39:674–684.Search in Google Scholar

Sinn, G., Sandak, J., Ramananantoandro, T. (2009) Properties of wood surfaces – characterisation and measurement. A review COST Action E35 2004–2008: wood machining – micromechanics and fracture. Holzforschung 63: 196–203.10.1515/HF.2009.016Search in Google Scholar

Stanzl-Tschegg, S.E., Navi, P. (2009) Fracture behaviour of wood and its composites. A review COST Action E35 2004–2008: wood machining – micromechanics and fracture. Holzforschung 63:139–149.10.1515/HF.2009.012Search in Google Scholar

Received: 2013-4-17
Accepted: 2013-9-24
Published Online: 2013-10-19
Published in Print: 2014-4-1

©2014 by Walter de Gruyter Berlin/Boston

Scroll Up Arrow