Abstract
Wood joinery is an essential part of woodworking for product manufacture. Wood sections are mostly joined together with adhesives. Wood welding brings a new dimension to joinery by using mechanical friction to induce a flow of wood components ensuring adhesion. In this study, a customized spin wood-welding machine was used to join wood sections of Dalbergia sissoo. Butt and tongue-and-groove joints were prepared and welded using the machine. The tensile strength of the joints was tested. The impact on joint strength of increasing the friction area by introducing tongue-and-groove joints was tested and analyzed. The tensile strength for butt joints at 1,200 rpm welding was estimated at 5.3 MPa. Joint strength was found to increase substantially (by 66%) with a tongue-and-groove welding section. Weld line temperatures at different spin times were also investigated. The aim of this study is to apply welding technology to Dalbergia sissoo to achieve greater joint strength.
Highlights
Materials and MethodsThousand tons of petrochemical-based glues are used every year across the globe
Aim of this study is to carry out some exploratory rotational wood welding on an Indian timber Dalbergia sissoo and compare the effect of tongue-andgroove welded joints over butt joints
A substantial amount of heat is generated at the weld line
Summary
Materials and MethodsThousand tons of petrochemical-based glues are used every year across the globe. Eco-friendly processing techniques for renewable materials like wood may offer great advantages over other comparable materials, which have higher environmental burdens. Wood welding is a technique to join wooden pieces by frictional heat without any glue. Significant studies have been carried out on friction vibration welding of wood (Pizzi et al, 2004; Omrani et al, 2007; Resch et al, 2006; Gfeller et al, 2004; Leban et al, 2004; Amirou et al, 2017). Aim of this study is to carry out some exploratory rotational wood welding on an Indian timber Dalbergia sissoo and compare the effect of tongue-andgroove welded joints over butt joints
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