The influence of pilot hole on the moment resistance of screwed T-Type furniture joints

• Autorzy: Tankut N.

Warianty tytułu

PL

Włpyw wiercenia otworów na wytrzymałość na zginanie skręcanych połączeń półkrzyżowych w meblach

• Języki publikacji: EN

Abstrakty

EN

This study was carried out to determine the effects of pilot hole, screw diameter, and wood composite panel type on the diagonal compression and tension strength properties of particleboard surfaced with synthetic resin sheet (LamPb) and MDF surfaced with synthetic resin sheet (LamMDF). Two different diameter of screws (3,5 and 4 mm) and three types of pilot holes (either 70 or 85 % of the root diameter of the screws, and without pilot hole) were utilized for constructing the test specimens. Samples with pilot hole gave higher strength values than control samples of all T-type corner joints. Namely, the use of pilot holes of the proper diameter significantly increases the bending and tension strength of the screws in the material. Pilot hole diamater was found to have a larger influence on bending moment resistance than screw diameter and panel type. Results of means separations of moment resistances indicated that in general the joints loaded in bending have greater moment resistance than those loaded in tension. LamMDF corner joints were stronger than LamPb corner joints. As case furniture constructions are under bending forces, in LamPB using 3.5 x 50 screws with a pilot hole of 70 % of the root diameter of the screws, in LamMDF using 4 x 50 screws with 85 % of the root diameter of the screws can be recommended as the most robust corner joint type for case furniture. As case furniture constructions are under tension forces, in LamPB using 4 x 50 screws with a pilot hole of 85 % of the root diameter of the screws, in LamMDF using 3.5 x 50 screws with 85 % of the root diameter of the screws can be recommended.

PL

Wpływ wiercenia otworów na wytrzymałość na zginanie skręcanych połączeń półkrzyżowych w meblach. Celem pracy było określenie wpływu wiercenia otworów, średnicy śruby oraz rodzaju materiału płytowego na wytrzymałość na zginanie oraz rozciąganie połączenia. W badaniach uwzględniono płytę wiórową laminowaną oraz MDF laminowaną, 2 średnice wkrętów oraz 3 rodzaje otworów (o średnicach 70% i 85% średnicy wkrętu oraz bez uprzednio wykonanego otworu). Wykazano, że odpowiednia średnica otworu zwiększa wytrzymałość na zginanie i rozciąganie połączenia.

• Wydawca: -
• Czasopismo: Annals of Warsaw University of Life Sciences - SGGW. Forestry and Wood Technology
• Rocznik: 2011
• Tom: 73
• Opis fizyczny: p.75-84,fig.,ref.

Twórcy

autor

Tankut N.

• Department of Forest Industrial Engineering, Faculty of Forestry, Bartin University, 74200 Bartin, Turkey

Bibliografia

• 1. AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM)., 1997: Standard test methods for evaluating properties of wood-base fiber and particle panel materials. D 1037- 96a. ASTM, West Conshohocken, PA.
• 2. AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM)., 1997: Standard test methods for specific gravity of wood and wood-base materials. D- 2395-93. ASTM, West Conshohocken, PA.
• 3. AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM)., 1997: Standard test methods for direct moisture content measurement of wood and woodbase materials. D- 4442-92. ASTM, West Conshohocken, PA.
• 4. DOGANAY S., OZCIFCI A., KURELI I. 1997: The effect of edge massive on screw holding in particleboard used for furniture production. J Nat Appl Sci Gazi Univ Turkey;10:2:273–80.
• 5. ECKELMAN C.A. 1975a: Screw-Holding Performance in Hardwoods and Particleboard. Forest Products Journal 25(6):30-35.
• 6. ECKELMAN C.A. 1975b: Effect of Holes on the Bending Strength of Wood and Particleboard Parts. Purdue University Agr. Exp. Sta. Res. Bul. No. 922, 8 pp.
• 7. ECKELMAN C.A. 1978: Predicting withdrawal strength of sheet-metal-type screws in selected hardwoods, Forest Products Journal. 2S(8):25-28.
• 8. ECKELMAN, C.A., MARTIN K. 1980: The Holding Strength of Four Types of Screws in Wood. Furniture Manufacturing Management 26(9):20-, 4 pp.
• 9. ECKELMAN C.A. 1988: The withdrawal strength of screws from a commercially available medium density fiberboard. Forest Products Journal 38(5):21-24
• 10. ECKELMAN C.A. 1990. Screw, Insert, Staple, and Nail-Holding Strength of Particleboard and MDF. AES 12379. Chapt. II, A "Review and Summary of Relevant Published Literature on Fasteners and Their Use with Particleboard and MDF." National Particleboard Association. Gaithersburg
• 11. ECKELMAN C.A. 2003: Textbook of product engineering and strength design of furniture. West Lafayette (IN): Purdue University Press.
• 12. EFE H., KASAL A. 2000: Tension strength of case construction with and without demontable corner joints. Industrial Architecture Journal of Faculty of Education Ankara, 8(8): 61-74.
• 13. ERDIL Y.Z., ZHANG J., ECKELMAN C. A. 2002: The Holding Strength of Screws in Plywood and Oriented Strand Board. Forest Products Journal 52(6):55-62.
• 14. FUJIMOTO Y., MORI M. 1983: Performance of wood screw joints for particleboard. Sci Bull Fac Agr Kyushu Univ Jpn;38(1):45–7.).
• 15. HO C. and ECKELMAN C.A. 1994: The use of performance tests in evaluating joint and fastener strength incase turnituie. Forest Products Journal. 44(9): 47-53.
• 16. JOHNSON J.W.1967: Screw holding abiility of particleboard and plywood. Rept T- 22. Forest Research Lab. , Oregon State Univ, Corvallis, OR.
• 17. KASAL A., SENER S., BELGIN C. M., EFE H. 2006: Bending strength of screwed corner joints with different materials. Gazi Univ. J. of Sci. Gazi Universitesi Fen Bilimleri Dergisi. 19(3):155-161.
• 18. LIU WQ., ECKELMAN C.A. 1998: Effect of number of fasteners on the strength of corner joints for cases. Forest Products Journal 48(1):93–5.
• 19. ORS Y., OZEN R., DOGANAY S. 1998: Screw holding ability of wood materials used in furniture manufacture. Turk J Agr Forest 22(1):29–34.).
• 20. RAJAK Z., 1989: Efficient use of serews in the construction of comer joints for case goods. MS thesis. Purdue Univ. W. Lafayette, IN. 124pp.
• 21. RAJAK Z., ECKELMAN C.A. 1993: Edge and face withdrawal strength of large serews in partieleboard and medium density fiberboard. Forest Products Journal 43(4):25-30.
• 22. RAJAK Z., ECKELMAN C.A. 1996: Analysis of corner joints constructed with large screws. J Trop Forest Sci 2(1).
• 23. TANKUT A.N., TANKUT N. 2004: Effect of some factors on the strength of furniture corner joints constructed with wood biscuits. Turkish J Agric Forestry 28(4):301–309.
• 24. TANKUT A.N. 2005: Optimum dowel spacing for corner joints in 32-mm cabinet construction. Forest Products Journal 55(12):100–104.
• 25. TANKUT N. 2006: Moment Resistance of Corner Joints Connected with Different RTA Fasteners in Cabinet Construction. Forest Products Journal, 56(4):35-40.
• 26. TANKUT N. 2007: The effect of adhesive type and bond line thickness on the strength of mortise and tenon joints. Int J Adhes Adhes 27(6):493–498.
• 27. TANKUT A. N., TANKUT N. 2005: The effects of joint forms (shape) and dimensions on the strengths of mortise and tenon joints. Turkish J Agric Forestry 29(6):493–498.
• 28. ZHANG J.L., ECKELMAN C. A. 1993: Rational design of multi dowel corner joints in case construction. Forest Products Journal 43(11/12):52–58.
• 29. ZHANG J.L., EFE H., ERDIL Y. Z., KASAL A., HAN N. 2005: Moment resistance of multiscrew L-type corner joints. Forest Products Journal. 55(10):56-63.