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Licensed Unlicensed Requires Authentication Published by De Gruyter July 1, 2006

Parameters of wood welding: A study with infrared thermography

Christelle Ganne-Chédeville, Milena Properzi, Antonio Pizzi, Jean-Michel Leban and Frédéric Pichelin
From the journal

Abstract

Welding of wood is a well-known joining procedure that offers several advantages over traditional mechanical fasteners or gluing. During welding, extensive solid-state transformation phases occur in the so-called melting zone and the heat-affected zone. The nature and the extension of such transformations are correlated to the energy input and thus to the heat generated during the process at the wood joint interface. In the present work the influence of the welding parameters and wood grain orientation on the temperature profile and distribution and final strength of welded connections was investigated. For this purpose, the characteristics of the joints were evaluated with both destructive and non-destructive techniques. Non-destructive evaluation was performed with infrared thermography, which allowed measurement of the maximal and average peak temperature, temperature profile and distribution, and rate of temperature increase. Thus, this technique can also be used to detect welding defects and to provide information on material modification during welding.

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Corresponding author. Berner Fachhochschule, University of Applied Sciences HSB, Solothurnstrasse 102, P.O. Box CH-2500, Biel-Bienne 6, Switzerland

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Published Online: 2006-07-01
Published in Print: 2006-07-01

©2006 by Walter de Gruyter Berlin New York