The Y and K factors can take on negative values, with lower values indicating a softer material. References in numbers are from zero to one. The location of the neutral bending line varies in part due to the sheet metal utilised. The location of the neutral bend line about the thickness of a sheet of metal is used to determine the Y factor and the K factor. To determine how much flat sheet metal must be produced to make a bend with a given radius and angle, designers employ constants known as the Y factor and the K factor. The Y-factor is similar to the K-factor, but it is more precise because it accounts for the stresses present in the material. This border exactly divides the thickness of the metal while the metal is flat, but it moves when the metal is bent.Ĭalculated from the neutral diameter divided by the material's thickness on standard charts, the K-factor ranges from 0.3 to 0.5. ![]() The neutral radius delineates the innermost boundary between these two phases within the metal. Metal sheets contract at the top and stretch at the bottom when bent. The K-factor and the Y-factor assess the sheet metal's response to bending and the degree to which it can be bent.
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