Surface finishes by mechanically induced wood surface fusion

Pizzi, A.; Leban, J.-M.; Zanetti, M.; Pichelin, Frédéric; Wieland, S.; Properzi, M. (2005). Surface finishes by mechanically induced wood surface fusion Holz als Roh- und Werkstoff, 63(4), pp. 251-255. Springer Nature 10.1007/s00107-004-0569-8

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Mechanically induced vibration wood fusion welding techniques can also be used to obtain wood surface finishes of increased surface hardness and performance in presence of polymerizing unsaturated oils such as sunflower oil, or other polymerizing finishes. Wood surface hardness values more than double than those for the untreated control timber can be obtained by this method. This result is obtained due to two effects induced by the sharp increase in temperature induced by the mechanical welding vibration (i) the polymerization to a hardened network of the unsaturated oil and (ii) the densification proven to occur in the surface layer of the timber during mechanically-induced vibration-welding. The first of these effects predominates at shorter welding times while at slightly longer welding times both effects occur with the second one progressively becoming the bigger contributor. In the latter case the some μm thin densified surface is a surface composite formed by the networked unsaturated oil permeating the wood fibre/fused lignin composite. © Springer-Verlag 2005.

Item Type:	Journal Article (Original Article)
Division/Institute:	School of Architecture, Wood and Civil Engineering School of Architecture, Wood and Civil Engineering > Institute for Materials and Wood Technology BFH Centres and strategic thematic fields > BFH Centre for Wood - Resource and Material
Name:	Pizzi, A.; Leban, J.-M.; Zanetti, M.; Pichelin, Frédéric0000-0003-3856-6707; Wieland, S. and Properzi, M.
Subjects:	Q Science > Q Science (General) Q Science > QC Physics T Technology > T Technology (General) T Technology > TA Engineering (General). Civil engineering (General) T Technology > TJ Mechanical engineering and machinery T Technology > TS Manufactures
ISSN:	0018-3768
Publisher:	Springer Nature
Language:	English
Submitter:	Christelle Ganne-Chédeville
Date Deposited:	12 May 2020 09:45
Last Modified:	22 Sep 2021 02:17
Publisher DOI:	10.1007/s00107-004-0569-8
Uncontrolled Keywords:	Ceramics Composites Glass Machines Manufacturing Natural Materials Processes Tools Wood Science & Technology Welding Wood Density Wood Surface Water Repellancy Friction Welding
ARBOR DOI:	10.24451/arbor.11268
URI:	https://arbor.bfh.ch/id/eprint/11268