Withdrawal Resistance of T-Nuts in Various Furniture Materials

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 asse...

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Main Authors: Ewa Skorupińska, Krzysztof Wiaderek, Maciej Sydor
Format: Article
Language:English
Published: University of Zagreb, Faculty of Forestry and Wood Technology 2022-01-01
Series:Drvna Industrija
Subjects:
Online Access:https://hrcak.srce.hr/file/406544
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author Ewa Skorupińska
Krzysztof Wiaderek
Maciej Sydor
author_facet Ewa Skorupińska
Krzysztof Wiaderek
Maciej Sydor
author_sort Ewa Skorupińska
collection DOAJ
description 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.
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spelling doaj.art-c1accaba84184fa4b887a98a31f6838b2022-12-22T01:24:58ZengUniversity of Zagreb, Faculty of Forestry and Wood TechnologyDrvna Industrija0012-67721847-11532022-01-0173327127710.5552/drvind.2022.001715Withdrawal Resistance of T-Nuts in Various Furniture MaterialsEwa Skorupińska0Krzysztof Wiaderek1Maciej Sydor2Euroline 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, PolandPoznań University of Life Sciences, Faculty of Forestry and Wood Technology, Department of Furniture, Poznań, PolandPoznań University of Life Sciences, Faculty of Forestry and Wood Technology, Department of Woodworking and Fundamentals of Machine Design, ul. Poznań, PolandT-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.https://hrcak.srce.hr/file/406544t-nutpinewoodoriented strand boardplywoodparticleboardfurniture materials
spellingShingle Ewa Skorupińska
Krzysztof Wiaderek
Maciej Sydor
Withdrawal Resistance of T-Nuts in Various Furniture Materials
Drvna Industrija
t-nut
pinewood
oriented strand board
plywood
particleboard
furniture materials
title Withdrawal Resistance of T-Nuts in Various Furniture Materials
title_full Withdrawal Resistance of T-Nuts in Various Furniture Materials
title_fullStr Withdrawal Resistance of T-Nuts in Various Furniture Materials
title_full_unstemmed Withdrawal Resistance of T-Nuts in Various Furniture Materials
title_short Withdrawal Resistance of T-Nuts in Various Furniture Materials
title_sort withdrawal resistance of t nuts in various furniture materials
topic t-nut
pinewood
oriented strand board
plywood
particleboard
furniture materials
url https://hrcak.srce.hr/file/406544
work_keys_str_mv AT ewaskorupinska withdrawalresistanceoftnutsinvariousfurniturematerials
AT krzysztofwiaderek withdrawalresistanceoftnutsinvariousfurniturematerials
AT maciejsydor withdrawalresistanceoftnutsinvariousfurniturematerials