Dynamics of guided circular saws

加拿大的木材加工业是加拿大经济健康的重要贡献者。为了保持其在国际市场上的竞争力，它必须不断提高原木加工成锯材的效率。必须解决两个主要因素：需要最大限度地减少木屑中损失的木材量，以及需要提高给定原木转化为锯板的速度。一方面，研究人员正在使用比传统使用的更薄的圆锯（为了减少由于切割厚度造成的浪费）;另一方面，正在进行研究以提高锯的操作速度（为了增加木材通过锯的速度）。使用太薄的锯和运行太快的锯都会出现困难。在这种情况下，刀片可能会过度偏离，从而在刨削到所需尺寸时造成过度浪费。正在进行的工作旨在通过实验测试和计算机建模来了解这种行为的原因。实验室和计算机测试的结果将导致新的锯切配置，这些配置将通过锯米尔斯的详细测试进行验证。

Canada's lumber processing industry is a vital contributor to the health of the Canadian economy. In order to maintain its ability to complete in the international market it must continually improve the efficiency with which logs are processed into sawn lumber. Two principal factors must be addressed: the need to minimize the amount of wood lost in saw dust, and the need to increase the speed with which a given log can be converted into sawn boards.The present research addresses both these isssues. One the one hand research is being conducted into the use of thinner circular saws than have been traditionally used (in order to reduce wastage due to the thickness of the cut); and on the other hand investigations are being conducted into increasing the speed that saws can be operated at (in order to increase the speed that the wood can be fed through the saw).Difficulties arise both in using saws that are too thin and in running saws too fast. In such circumstances the blade may deviate excessively and thus cause excessive waste when planed to the required dimensions. The work being conducted seeks to understand the cause of such behaviour through experimental testing and computer modeling.The results of laboratory and computer testing will lead to new sawing configurations that will be verified by detailed testing in saw mills.