This paper analyses the geometrical character of curve of edge of form milling cutter, and infers the mathematical equations of curve, The center coordinates of conical button-shaped are evaluated.
If we consider light from the point of view of geometrical optics, we would expect sharp, well-defined shadows to appear behind the edge of an opaque obstacle.
从几何光学的观点出发,我们预期在不透明障碍物边缘的后面将得到明显清晰的阴影。
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The stress singularity depends on the material combination and the geometrical shape of the interface edge.