Stem modeling and simulation of conversion of cork oak stems for quality wood products

Sofia Knapic (Corresponding Author), Isabel Pinto-Seppä, Arto Usenius, H. Pereira

Research output: Contribution to journalArticleScientificpeer-review

11 Citations (Scopus)

Abstract

Recent research is underway to study cork oak (Quercus suber L.) wood potential for production of wood components. A total of 35 stems of young and mature cork oaks were sampled, live sawn into flitches, scanned using VTT’s WoodCIM®, and the measured data computed by VTT’s PuuPilot software, allowing stem 3D reconstruction. Sawing simulations were run for 0.5 m and 1 m logs and the whole stem. Sawn products were (1) planks, (2) parquet, (3) lamparquet, and (4) external component of multilayer planks. Cork oak stems showed a moderate to small taper (mean 24 mm/m). Curviness varied between straight to significantly crooked stems (mean value 40 mm) Batch yields for the tested products ranged 25–43% and 37–50% for 0.5 m logs of young and mature trees, respectively; for 1 m logs, batch yields ranged 19–41% and 25–54%. When using the whole stem, batch yields were lower, ranging 11–38% and 15–50%. Higher yields were obtained for all log lengths and samples for production of lamparquet, parquet, and multilayer component.
Original languageEnglish
Pages (from-to)745-751
Number of pages7
JournalEuropean Journal of Forest Research
Volume130
Issue number5
DOIs
Publication statusPublished - 2011
MoE publication typeA1 Journal article-refereed

Fingerprint

Quercus suber
wood products
stem
stems
modeling
simulation
sawing
timber production
oak
cork
wood product
software

Keywords

  • 3D stem models
  • cork oak
  • sawing simulation
  • stem quality
  • wood conversion
  • wood flooring

Cite this

@article{96b40dcdd0da4c7297aac7ab0c6394ce,
title = "Stem modeling and simulation of conversion of cork oak stems for quality wood products",
abstract = "Recent research is underway to study cork oak (Quercus suber L.) wood potential for production of wood components. A total of 35 stems of young and mature cork oaks were sampled, live sawn into flitches, scanned using VTT’s WoodCIM{\circledR}, and the measured data computed by VTT’s PuuPilot software, allowing stem 3D reconstruction. Sawing simulations were run for 0.5 m and 1 m logs and the whole stem. Sawn products were (1) planks, (2) parquet, (3) lamparquet, and (4) external component of multilayer planks. Cork oak stems showed a moderate to small taper (mean 24 mm/m). Curviness varied between straight to significantly crooked stems (mean value 40 mm) Batch yields for the tested products ranged 25–43{\%} and 37–50{\%} for 0.5 m logs of young and mature trees, respectively; for 1 m logs, batch yields ranged 19–41{\%} and 25–54{\%}. When using the whole stem, batch yields were lower, ranging 11–38{\%} and 15–50{\%}. Higher yields were obtained for all log lengths and samples for production of lamparquet, parquet, and multilayer component.",
keywords = "3D stem models, cork oak, sawing simulation, stem quality, wood conversion, wood flooring",
author = "Sofia Knapic and Isabel Pinto-Sepp{\"a} and Arto Usenius and H. Pereira",
year = "2011",
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journal = "European Journal of Forest Research",
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Stem modeling and simulation of conversion of cork oak stems for quality wood products. / Knapic, Sofia (Corresponding Author); Pinto-Seppä, Isabel; Usenius, Arto; Pereira, H.

In: European Journal of Forest Research, Vol. 130, No. 5, 2011, p. 745-751.

Research output: Contribution to journalArticleScientificpeer-review

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AU - Knapic, Sofia

AU - Pinto-Seppä, Isabel

AU - Usenius, Arto

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N2 - Recent research is underway to study cork oak (Quercus suber L.) wood potential for production of wood components. A total of 35 stems of young and mature cork oaks were sampled, live sawn into flitches, scanned using VTT’s WoodCIM®, and the measured data computed by VTT’s PuuPilot software, allowing stem 3D reconstruction. Sawing simulations were run for 0.5 m and 1 m logs and the whole stem. Sawn products were (1) planks, (2) parquet, (3) lamparquet, and (4) external component of multilayer planks. Cork oak stems showed a moderate to small taper (mean 24 mm/m). Curviness varied between straight to significantly crooked stems (mean value 40 mm) Batch yields for the tested products ranged 25–43% and 37–50% for 0.5 m logs of young and mature trees, respectively; for 1 m logs, batch yields ranged 19–41% and 25–54%. When using the whole stem, batch yields were lower, ranging 11–38% and 15–50%. Higher yields were obtained for all log lengths and samples for production of lamparquet, parquet, and multilayer component.

AB - Recent research is underway to study cork oak (Quercus suber L.) wood potential for production of wood components. A total of 35 stems of young and mature cork oaks were sampled, live sawn into flitches, scanned using VTT’s WoodCIM®, and the measured data computed by VTT’s PuuPilot software, allowing stem 3D reconstruction. Sawing simulations were run for 0.5 m and 1 m logs and the whole stem. Sawn products were (1) planks, (2) parquet, (3) lamparquet, and (4) external component of multilayer planks. Cork oak stems showed a moderate to small taper (mean 24 mm/m). Curviness varied between straight to significantly crooked stems (mean value 40 mm) Batch yields for the tested products ranged 25–43% and 37–50% for 0.5 m logs of young and mature trees, respectively; for 1 m logs, batch yields ranged 19–41% and 25–54%. When using the whole stem, batch yields were lower, ranging 11–38% and 15–50%. Higher yields were obtained for all log lengths and samples for production of lamparquet, parquet, and multilayer component.

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KW - wood conversion

KW - wood flooring

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