Mobilya endüstrisinde MDF levhalarda yüzey pürüzlülüğü ve yapışma performansına kesim parametrelerinin etkileri

Abstract

Bu çalışmada, farklı yoğunluk seviyelerine sahip orta yoğunluklu lif levhalarda (MDF) kesim parametrelerinin kenar yüzey pürüzlülüğü (Ra) ve Polivinilklorür (PVC) kenar bantlarının yapışma direnci üzerindeki etkileri araştırılmıştır. Deneylerde 18 mm kalınlığında, düşük (0,65 g/cm³) ve yüksek (0,72 g/cm³) yoğunlukta MDF levhalar kullanılmıştır. Kesimler, 96 dişli ATB geometriye sahip daire testere ile 3000 ve 4500 dev/dk dönme hızlarında ve 6, 9, 12 m/dk ilerleme hızlarında gerçekleştirilmiştir. Kesim sonrası yüzey pürüzlülüğü ölçümleri TS EN ISO 21920-2 standardına uygun olarak yapılmış, yapışma direnci ise ASTM D6862 standardına göre 90° soyma testi ile belirlenmiştir. Varyans analizi (ANOVA) sonuçlarına göre yoğunluk, dönme hızı ve ilerleme hızı faktörlerinin hem yüzey pürüzlülüğü hem de yapışma direnci üzerinde istatistiksel olarak anlamlı etkileri bulunmuştur (p < 0,05). Yüksek yoğunluklu MDF, yüksek dönme hızı ve düşük ilerleme hızı koşullarında en düşük Ra (3,91 µm) ve en yüksek yapışma direnci (5,87 N/mm) değerlerini vermiştir. Ayrıca yüzey pürüzlülüğü ile yapışma direnci arasında negatif yönlü güçlü bir korelasyon (r = –0,72; p < 0,001) belirlenmiştir. Sonuç olarak, MDF’nin işlenmesinde özellikle yüksek yoğunluklu levhaların ve yüksek dönme hızı ile düşük ilerleme hızı parametrelerinin seçilmesinin, hem yüzey kalitesini hem de PVC kenar bantlarının yapışma performansını optimize ederek artırdığı ortaya konmuştur.

Keywords

• MDF
• Yüzey Pürüzlülüğü
• Yapışma Direnci
• Kenar Bantlama

Effects of cutting parameters on surface roughness and adhesion performance of MDF panels in the furniture industry

Abstract

In this study, the effects of cutting parameters on edge surface roughness (Ra) and adhesion strength of Polyvinyl Chloride (PVC) edge bands in medium-density fiberboard (MDF) with different density levels were investigated. MDF panels with 18 mm thickness and two density levels (low: 0.65 g/cm³ and high: 0.72 g/cm³) were used in the experiments. Cutting was performed using a 96-tooth circular saw blade with an alternate top bevel (ATB) geometry at spindle speeds of 3000 and 4500 rpm and feed rates of 6, 9, and 12 m/min. Surface roughness was measured according to TS EN ISO 21920-2, while adhesion strength was determined by the 90° peel test in accordance with ASTM D6862. Analysis of variance (ANOVA) revealed that density, spindle speed, and feed rate had statistically significant effects on both surface roughness and adhesion strength (p < 0.05). High-density MDF combined with higher spindle speed and lower feed rate yielded the lowest Ra value (3.91 µm) and the highest adhesion strength (5.87 N/mm). Furthermore, a strong negative correlation was found between surface roughness and adhesion strength (r = –0.72; p < 0.001). Overall, the findings demonstrated that selecting appropriate cutting parameters in MDF processing improves both surface quality and the adhesion performance of PVC edge bands.

Keywords

• MDF
• Surface Roughness
• Adhesion Strength
• Edge Banding

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