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Insert, drill, and method of manufacturing a cut product using the same
Insert, drill, and method of manufacturing a cut product using the same
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机译:镶件,钻头以及使用该镶件,钻头及其制造切割产品的方法
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摘要
An insert according to an embodiment includes an upper surface including a corner part, a lower surface, a side surface, and a cutting edge. The cutting edge includes a first cutting edge located at the corner part, a second cutting edge adjacent to the first cutting edge, a third cutting edge adjacent to the second cutting edge, and a fourth cutting edge adjacent to the third cutting edge. Each of the third cutting edge and the fourth cutting edge has a concave curvilinear shape extending downward in a side view. A radius of curvature of the fourth cutting edge is smaller than a radius of curvature of the third cutting edge.
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