tailieunhanh - The effect of the number of blades and the grain size of abrasives in planing and sanding on the surface roughness of european black pine and lombardy poplar

The effect of the number of blades and the abrasive grain size of sandpaper on the surface roughness in wood materials obtained from Lombardy poplar (Populus nigra L.) and European black pine (Pinus nigra A.) were examined. A total of 220 samples were prepared for this purpose. | Turk J Agric For 29 (2005) 315-321 © TÜB‹TAK The Effect of the Number of Blades and the Grain Size of Abrasives in Planing and Sanding on the Surface Roughness of European Black Pine and Lombardy Poplar Erol BURDURLU*, ‹lker USTA, Meliha ULUPINAR, Bora AKSU, T. Ça¤r› ERARSLAN Hacettepe University, Department of Wood Products Industrial Engineering, 06532 Ankara - TURKEY Received: Abstract: The effect of the number of blades and the abrasive grain size of sandpaper on the surface roughness in wood materials obtained from Lombardy poplar (Populus nigra L.) and European black pine (Pinus nigra A.) were examined. A total of 220 samples were prepared for this purpose. The samples were subjected to roughness measurements according to TS 6212 EN ISO 4288. The values obtained were statistically analyzed and the results were interpreted. The best results among the sanded surfaces in roughness were obtained with 180-grit sandpaper on tangential cut surfaces for Lombardy poplar and with 220-grit sandpaper on tangential cut surfaces for European black pine. In the planed surfaces, the best result was obtained on tangential cut surfaces with 2 blades -1 and a 5 m min feeding rate for Lombardy poplar and European black pine. Key Words: Surface roughness, Wood sanding, Wood planing, European black pine, Lombardy poplar Karaçam ve Karakavak’›n Rendelenmesi ve Z›mparalanmas›nda B›çak Say›s› ve Z›mpara Tanecik Büyüklü¤ünün Yüzey Pürüzlülü¤üne Etkisi Özet: Bu çal›flmada, Karakavak (Populus nigra L.) ve Karaçam (Pinus nigra A.) ‘dan elde edilmifl ahflap malzemenin, planya ve z›mpara makinesinde ifllenmesinde b›çak say›s› ve z›mpara tanecik büyüklü¤ünün yüzey pürüzlülü¤üne etkisi araflt›r›lm›flt›r. Bu amaçla, farkl› numaral› (Farkl› tanecik büyüklüklü) z›mparalar›n pürüzlülü¤e etkisinin belirlenebilmesi için 5 x 2 x 10 (z›mpara türü x kesifl yönü x ölçüm say›s›) = 100 ve b›çak say›s› ve besleme oran›n›n pürüzlülü¤e etkisinin belirlenmesi için 3 x 2 x 2 x 10 (b›çak say›s›

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