|
|
Article: Interior wood joints by mechanical fusion welding of wood surfaces.
- Article from:
- Forest Products Journal
- Article date:
- July 1, 2004
- Author:
CopyrightCOPYRIGHT 2004 Forest Products Society. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)
|
Abstract
Mechanically induced wood fusion welding, without any adhesive, is shown here to rapidly yield wood joints that satisfy the relevant requirements for structural application. The mechanism of mechanically induced vibrational wood fusion welding is shown to be due mostly to the melting and flowing of amorphous cells-interconnecting polymer material in the structure of wood, mainly lignin, but also some hemicelluloses. This causes the partial detachment ("ungluing") of long wood cells (wood fibers) and the formation of an entanglement network drowned in a matrix of melted material, which then solidifies. This creates a wood cells entanglement network ...