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A theoretical and experimental study of the circular sawing process
Mittuniversitetet, Fakulteten för naturvetenskap, teknik och medier, Avdelningen för naturvetenskap. (FSCN)
Andritz Iggesund Tools AB, Iggesund, Sweden.
Mittuniversitetet, Fakulteten för naturvetenskap, teknik och medier, Avdelningen för naturvetenskap.
Mittuniversitetet, Fakulteten för naturvetenskap, teknik och medier, Avdelningen för naturvetenskap.
2014 (Engelska)Ingår i: Holzforschung, ISSN 0018-3830, E-ISSN 1437-434X, Vol. 68, nr 3, s. 307-312Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

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.

Ort, förlag, år, upplaga, sidor
2014. Vol. 68, nr 3, s. 307-312
Nyckelord [en]
chipper canter, energy consumption, modeling, sawing, sawmill, surface energy
Nationell ämneskategori
Kemiteknik
Identifikatorer
URN: urn:nbn:se:miun:diva-22593DOI: 10.1515/hf-2013-0066ISI: 000333798400007Scopus ID: 2-s2.0-84903118796OAI: oai:DiVA.org:miun-22593DiVA, id: diva2:739003
Tillgänglig från: 2014-08-19 Skapad: 2014-08-19 Senast uppdaterad: 2017-12-05Bibliografiskt granskad

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Hellström, Lisbeth M.Edvardsson, SverkerGradin, Per A.

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