The study examines the degree of deviation from the nominal size of the produced open full-width mortise and tenon joint elements for their optimal pairing based on the measured thickness and gap width data. The characteristics of the measuring devices used were analysed by the repeatability and reproducibility test. The compressive strength of the single-glued joints (where only the surfaces of the tenon were glued) and double-glued joints (where the surfaces of both the mortise and tenon elements were glued) for various joint fit categories was also determined. It was found that despite the huge number of produced test specimens and their measurements, the joint fits could be maintained with the milling machine and tools. The thickness of the joint could be characterized by measuring the data at the centre of the tenon, whereas the gap width of the mortise could be characterized by measuring the data on the side of the tool leaving the wood. The double-glued joints showed higher breaking force and displacement values as compared to the single-glued joints. The joints were found to be the strongest at a tight fit of 0.1 mm.
KivonatAz energiahatékonyság iránti igény gyorsan növekszik. Az épületek energetikai tulajdonságának javítását és a megtakarítási lehetőségek minél jobb kihasználását célzó energetikai direktívák, rendeletek közvetlenül hatnak az épületek homlokzatának szerves részét képező ablakszerkezetekre, hiszen egy épület energetikai mérlegében nagy szerepet töltenek be a különböző nyílászáró szerkezetek. Ablakok esetében a hőátbocsátási tényező számítással való meghatározására az EN This deviation cannot be neglected when declaring the CE performance values, nor when a manufacturer is designing his products for a given level of thermal performance.
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