Estimation of Power Required for Circular Sawing a New Material.

利用单齿锯切抗冲击弯曲吸收能量计算的断裂韧性，可以估计出单齿锯切的切削阻力。因此，从冲击弯曲过程中吸收的能量出发，对圆锯的净功率需求进行了估算和研究。研究结果为：1)即使不相同，用S&C法计算断裂韧性的切削阻力估计值也与实验值相近。2)圆锯的蝾螈功率需求估计值几乎是S&C法估算的切割电阻值的两倍。3)由于对金属材料应采用S&C计算方法，因此考虑采用S&C方法计算的切削电阻估计值和净功率需求大于实验值。综上所述，要用S&C方法更准确地估计MDF中的切削阻力，应将断裂韧性从14.63Q^<0.5>调整为8.387Q^<0.5>，即冲击弯曲吸收能量。

It is possible to estimate of cutting resistance in single tooth saw cut from fracture toughness that calculate with absorbed energy in impact- bending resistance in single tooth cut. Therefore, net power requiredment in circluar saw was estimated and invesitigated from absorbed energy in impact-bending.The results obtained in the study were ;1) Even it was not the same, estimated value of cutting resistance from fracture toughness with S&C method calculation was similar to experiment value.2) Estimated value of newt power requirement in circular saw was almost twice the value of cutting resistance estimated with S&C method.3) The estimated value of cutting resistance and net power requirement with S&C method bigger than experimental value is considered because the S&C calculation method should be used for metal material.From facts above, it can be said that to have a more accurate estimation of cutting rsistance in the MDF with the S&C method, the fracture toughness should be adjusted from 14.63Q^<0.5> becoming 8.387Q^<0.5> is equal to absorbed energy in impact-bending.