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首页> 外文会议>7th World Conference on Timber Engineering, WCTE 2002 Vol.3, Aug 12-15, 2002, Shah Alam, Malaysia >INVESTIGATIONS ON THE WOOD MACHINING PARAMETERS OF FINGER-JOINTING PROCESS OF BLACK SPRUCE
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INVESTIGATIONS ON THE WOOD MACHINING PARAMETERS OF FINGER-JOINTING PROCESS OF BLACK SPRUCE

机译：黑云杉指接工艺的木材加工参数研究

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摘要

In Eastern Canada, black spruce (Picea mariana (Mill.) B.S.P.) has recently been introduced to finger-joined wood products. While there is a growing economic importance of the species in such applications, little information is available on the manufacturing parameters that influence the finger-jointing process for this particular species. Therefore, the main objective of this work was to evaluate the effect of wood machining parameters on the structural performance of finger-joined products of black spruce in order to achieve an optimum finger-jointing process. Parameters investigated in this study were chip-load and cutting speed. Feather joint configuration was used with isocyanate adhesive, assembled with an end pressure of 550 psi. Analysis of variance (ANOVA) showed no significant effect of the cutting speed and chip-load on the finger-jointing performance of black spruce. However, the second degree polynomial relationship obtained for the chip-load was not far from being significant. Results indicated that optimum finger-jointing in black spruce could be achieved at a chip-load of 0.034 inch. Wood failure was mostly produced along the joint profile but with some failures at the finger roots, indicating an excellent performance of the gluelines. This study is an important step towards a better understanding of the black spruce finger-jointing process which will assist the wood product industry in optimizing its finger-jointing operations.
机译：在加拿大东部，黑云杉（Picea mariana（Mill。）B.S.P.）最近被引入指接木制品。尽管在这种应用中该物种的经济重要性越来越高，但很少有关于影响该特定物种的指接过程的制造参数的信息。因此，这项工作的主要目的是评估木材加工参数对黑云杉指接产品结构性能的影响，以实现最佳的指接工艺。在这项研究中研究的参数是切屑载荷和切削速度。羽毛接头配置与异氰酸酯粘合剂一起使用，最终压力为550 psi。方差分析（ANOVA）显示切削速度和切屑负荷对黑云杉的指接性能没有显着影响。但是，针对切屑负载获得的二次多项式关系并不显着。结果表明，在0.034英寸的切屑载荷下，可以实现黑云杉的最佳指接。木材破坏主要是沿着关节轮廓产生的，但在指根处有一些破坏，表明胶合线的性能优异。这项研究是更好地了解黑云杉指接工艺的重要一步，这将有助于木制品行业优化其指接操作。

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