Different cutting positions at different cutting
moments are shown in Fig. 18. The space between the
two red lines means the position of cutting. More material
(fibrous skins) was cut at the 1st and 3rd positions
than 2nd position. It may be the reason why the maximum
force appeared at the beginning and ending of
cutting (Fig. 14). The bionic saw blade can reduce the
maximum force due to its special sawtooth shape. The
energy consumption during cutting corn stalk using
bionic saw blade is less than that using traditional saw
blade.