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Predicting wood properties using resistance drilling the effect of needle diameter and battery2.31 MB
Published Version (Advanced Access)CC BY V4.0, Open Access
Journal article
Predicting wood properties using resistance drilling: the effect of needle diameter and battery
Wood Material Science and Engineering, Vol.Advanced access
2025
Appears in UniSC Supported Open Access Outputs
Abstract
The IML PD series Resi instrument is widely used for wood quality assessment, valued for its speed, cost-effectiveness, and precision. Currently, it is not known to what degree needle diameters are an issue for quantifying wood density and stiffness. Additionally, some anecdotal evidence suggests that the battery might have an effect as well. To quantify the impact of needle diameter, twelve new Resi needles (3.08–3.30 mm) were tested using a single IML Resi PD 500 instrument on a southern pine (Pinus elliottii var. elliottii (Engelm) × Pinus caribaea var. hondurensis (Sénéclauze)) log with settings of 200 cm/min feed speed and 3500 rpm. Each needle was tested 44 times, along with five different batteries. The maximum difference in drilling resistance between needles was 2.3%, corresponding to a 15.4 kg/m³ difference in predicted basic density. This occurred with extreme needle diameters (3.08 mm or 3.21–3.30 mm), while needles within the typical 3.11–3.20 mm range showed no significant difference. Feed resistance was highly sensitive to needle diameter changes, with an 11.5% difference translating to a 108.1 kg/m³ density difference. Battery effects were minimal, causing only a 0.5% amplitude difference in drilling resistance.
Details
- Title
- Predicting wood properties using resistance drilling: the effect of needle diameter and battery
- Authors
- Vilius Gendvilas (Corresponding Author) - University of the Sunshine Coast, Queensland, Forest Industries Research CentreDavid Lee (Author) - University of the Sunshine Coast, Queensland, Forest Industries Research CentreGeoffrey M Downes (Author) - Forest Quality Pty LtdMarco Lausberg (Author) - Wood Quality Consulting Limited (New Zealand)Jonathan J Harrington (Author) - Scion
- Publication details
- Wood Material Science and Engineering, Vol.Advanced access
- Publisher
- Taylor & Francis
- DOI
- 10.1080/17480272.2025.2565371
- ISSN
- 1748-0280; 1748-0272
- Copyright note
- © 2025 The Author(s). Published by Informa UK Limited, trading as Taylor & Francis Group. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. The terms on which this article has been published allow the posting of the Accepted Manuscript in a repository by the author(s) or with their consent.
- Grants
- Assessing and managing mid-rotation wood quality in Australian softwood plantations to produce fit-for-purpose logs., PNB548-2021, Forest and Wood Products (Australia, Melbourne) - FWPA
- Organisation Unit
- Forest Industries Research Centre
- Language
- English
- Record Identifier
- 991167745602621
- Output Type
- Journal article
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