Drvna industrija, Vol. 73 No. 3, 2022.
Izvorni znanstveni članak
https://doi.org/10.5552/drvind.2022.0017
Withdrawal Resistance of T-Nuts in Various Furniture Materials
Ewa Skorupińska
orcid.org/0000-0002-3558-622X
; Euroline sp. z o.o., Leszno, Poland and Poznań University of Life Sciences, Faculty of Forestry and Wood Technology, Department of Woodworking and Fundamentals of Machine Design, ul. Poznań, Poland
Krzysztof Wiaderek
orcid.org/0000-0001-5432-4738
; Poznań University of Life Sciences, Faculty of Forestry and Wood Technology, Department of Furniture, Poznań, Poland
Maciej Sydor
orcid.org/0000-0003-0076-3190
; Poznań University of Life Sciences, Faculty of Forestry and Wood Technology, Department of Woodworking and Fundamentals of Machine Design, ul. Poznań, Poland
Sažetak
T-nuts are factory installed in the holes of the ready-to-assemble furniture components. There is a risk that the t-nut spontaneously falls out during transport or storage and get lost; the t-nut can also be pushed into inaccessible spaces during assembly. These complications can make furniture assembly impossible. For this reason, sufficient force to hold the t-nut in the hole is essential. The article presents the test results of the forces holding the t-nuts in five furniture materials (softwood, Oriented Strand Board, plywood, and particleboard in two variants). The M6 t-nuts with four prongs were installed in predrilled 8 mm holes. The resistance to withdrawal of the t-nuts was measured with a universal testing machine. The tested materials could be divided into three groups in terms of the risk of the t-nut falling out: softwood and plywood – low risk, F = 1113.2-1158.0 N; OSB and particleboard – moderate risk, F = 592.3-645.5 N, particleboard with a pad – high risk, F = 645.5 N. The results show that the withdrawal resistance is not correlated with the density of the wood material, and that it decreased with the degree of wood material processing – the less processed the material, the greater the resistance to withdrawal of the t-nuts.
Ključne riječi
T-nut; pinewood; oriented strand board; plywood; particleboard; furniture materials
Hrčak ID:
280458
URI
Datum izdavanja:
15.7.2022.
Posjeta: 807 *