Improvements in the holding strength of CAM fittings used in eccentric joints
Many insert fittings are commonly used in furniture production to join particleboard and MDF. Screws either without or with plastic sockets and cam fittings plastic or metal of many manufacturers, are offered for this kind of joints in the market.Previous researchers have studied the holding strength of insert fittings following the manufacturers recommendations with respect to pilot hole size and the insertion of cam fittings. However, use of cam fittings according to manufacturer recommendations resulted in very low holding strength values. Two simple improvements are presented in this work to increase the holding strength of cam fittings: 1) Gluing of cam fittings with PVAc adhesive, and 2) fixing of cam fittings with screws. Holding strength of cam fittings fixed with screws improved by 40.0% to 46.2% in Pbd, and by 53.8% to 92.2% in MDF whereas, the insertion of cam fittings with PVAc adhesive improved their holding strength by 81.3% to 248.2% in Pbd, and by 82.9% to 265.3% in MDF.
Αριστοτέλειο Πανεπιστήμιο Θεσσαλονίκης, Σχολή Γεωπονίας, Δασολογίας και Φυσικού Περιβάλλοντος, Τμήμα Δασολογίας και Φυσικού Περιβάλλοντος
Annals of Warsaw University of Life Sciences - SGGW-Forestry and Wood technology, no.67  p.19-23 [Published Version]
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