Abstract
It is important to evaluate the effect of machining and wood machining properties on surface quality to determine and upgrade the data on wood machining properties and to defi ne convenient usage areas for some native wood species of Turkey. European black pine (Pinus nigra Arnold) and cedar of Lebanon (Cedrus libani A. Rich) are two softwood species and sessile oak (Quercus petraea Lieble) and black poplar (Populus nigra L.) are two hardwood species commonly used and grown in Turkey. These trees species were selected as experimental material for the study. Roughness measurements are signifi cant in the determination of wood surface quality for use as a fi nal product. This study evaluated roughness measurements after planing and sanding operations, and found that the highest value for average roughness (Ra) was observed as 6.780 μm. in sessile oak, followed by black poplar at 6.338 μm, cedar of Lebanon at 4.836 μm, and black pine at 4.740 μm. The average roughness values for wood in directions perpendicular to the grain and along the grain from highest to lowest were sessile oak, black poplar, black pine, and cedar of Lebanon.
Highlights
IntroductionRoughness reflects faults on a wood surface as a result of the operations carried out in production
This study evaluated roughness measurements after planing and sanding operations, and found that the highest value for average roughness (Ra) was observed as 6.780 μm. in sessile oak, followed by black poplar at 6.338 μm, cedar of Lebanon at 4.836 μm, and black pine at 4.740 μm
This study investigated and evaluated surface roughness through planing and sanding experiments for several hardwood and softwood species commonly used in Turkey
Summary
Roughness reflects faults on a wood surface as a result of the operations carried out in production. These faults are repeated with a low probability and periodically. Control and monitoring of surface roughness is required to maintain product quality at the same level throughout the production, as this property affects wood adhesion and changes can increase loss. After solid wood undergoes machining by sawing, planing, sanding, etc., it becomes a final product. Wood finishing is an important factor in determining the economic value of the final product. Surface roughness is a definitive property for measuring the success of the wood finish
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