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Paper Information

Journal:   IRANIAN JOURNAL OF WOOD AND PAPER SCIENCE RESEARCH   winter 2018 , Volume 32 , Number 4 (61) ; Page(s) 596 To 605.

Investigating the effect of dowel diameter and surface in softwood joints, made by welding and glue

Author(s):  Omrani P.*, Maryami h., Eisapour R.
* Wood Science and Technology Department, The Faculty of Civil Engineering, Shahid Rajaee Teacher Training University, Tehran, Iran
Today, due to the highly sensitive bearing load, joints in furniture and wooden structures are one of the most important scientific topics for research. The most recent method proposed to build wooden joints in Europe and the United States is a eco-friendly method, without using any type of adhesive, called "wood welding". In the present study, the effect of dowel diameter and surface on the tensile strength of softwood joints was investigated using two methods: wood welding and glue bonding. Fir (Abies alba) wood and polyvinyl acetate glue (PVA) was used for adhesive bonding, and Hornbeam (Carpinus betulus) wood was used for connector dowels and other parameters were kept constant. The structure of the welded surfaces was analyzed using scanning electron microscopy (SEM). The results of the tensile strength test showed that dowel diameter and surface texture have a significant effect on the tensile strength of joints in both joint methods.
Keyword(s): wood welding,Abies alba,polyvinyl acetate,dowel joint,the tensile strength of the joint
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