The knife blade Angle is small, when cutting labor.

现有菜刀的刀刃角度较小，切菜时省力。

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The result mean: the cutting force affected more by species, cutting direction, the size of saw blade, Angle parameter and the depth of cutting when making no dust cutting experiment by wedge saw.

研究证明，楔型刀锯进行木质材料无屑切削时，其切削力受木材的树种、切削方向、锯片尺寸、角度参数及切削用量的影响较大。

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Tests are conducted to find the rules how such cutting parameters as cutting depth, cutting speed and feedrate per blade as well as the cutting angle affect on the life of face mill.

前言： 通过试验，找出了切削深度、切削速度、每齿进给量等切削用量及切出角影响面铣刀寿命的规律。

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