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Sharpness refers to the ability of a blade, point, or cutting implement to cut through materials with minimal force, and can more specifically be defined as the capacity of a surface to initiate the cut. [1] Sharpness depends on factors such as the edge angle, edge width, and the fineness of the cutting edge, and is aided by material hardness.
This edge is then refined by honing until the blade is capable of cutting. The extent to which this honing takes place depends upon the intended use of the tool or implement. For some applications an edge with a certain amount of jaggedness is acceptable, or even desirable, as this creates a serrated cutting edge. In other applications the edge ...
A sharp blade will have a distinct edge, like a corner, and may sing slightly from vibration, while a dull blade will have a round edge and the thumb will slip over it. A blade's sharpness may be tested by checking if it "bites"—begins to cut by being drawn across an object without pressure.
Roughly sharpening a blunt edge 1000-2000: 8 μm: Fine, will leave a blade sharper than most factory edges 4,000: 4 μm: Ultra-fine, for cutting meat 8,000: 2 μm: Further smoothing a sharp edge for cutting fish or vegetables (sinews in meat will bend an edge this sharp) 10,000: 0.5 μm: Polishing an edge to a mirror-smooth (but possibly ...
A simple blade intended for cutting has two faces that meet at an edge. Ideally, this edge would have no roundness but in practice, all edges can be seen to be rounded to some degree under magnification either optically or with an electron microscope. Force is applied to the blade, either from the handle or pressing on the back of the blade.
Some critics of U.S. export controls have argued that DeepSeek’s ability to create models as capable as its V3 LLM and R1, despite having access to fewer cutting edge computer chips due to U.S ...
In machining, the rake angle is a parameter used in various cutting processes, describing the angle of the cutting face relative to the workpiece. There are three types of rake angles: positive, zero or neutral, and negative. Positive rake: A tool has a positive rake when the face of the cutting tool slopes away from the cutting edge at inner side.
On this episode of Fortune’s Leadership Next podcast, Diane Brady, executive editorial director of the Fortune CEO Initiative and Fortune Live Media, welcomes a new co-host, editorial director ...