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 significant in the determination of wood surface quality for use as a final 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.
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机译：重要的是评估机械加工和木材加工性能对表面质量的影响，以确定并更新有关木材加工性能的数据，并为土耳其的某些本地木材品种定义方便的使用区域。欧洲黑松（Pinus nigra Arnold）和黎巴嫩雪松（Cedrus libani A. Rich）是两种软木树种，而无梗橡树（Quercus petraea Lieble）和黑杨（Populus nigra L.）是土耳其常用和生长的两种硬木树种。选择这些树种作为研究的实验材料。粗糙度测量对于确定用作最终产品的木材表面质量非常重要。这项研究评估了刨光和打磨操作后的粗糙度测量结果，发现平均粗糙度（Ra）的最大值为6.780μm。在无梗橡木中，其后为6.338μm的黑杨树，4.836μm的黎巴嫩雪松和4.740μm的黑松树。垂直于谷物方向并沿着谷物从最高到最低的方向，木材的平均粗糙度值为无柄橡树，黑杨，黑松和黎巴嫩雪松。
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