1)What is GD&T and explain some symbols, 2)how calcuate bending allowance in sheet metal.

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Accepted Answer

GD&T is a system of symbols used to define and communicate engineering tolerances. Bending allowance is the amount of material needed for a bend in sheet metal.

GD&T stands for Geometric Dimensioning and Tolerancing
Some common GD&T symbols include concentricity, perpendicularity, and flatness
Bending allowance is calculated by multiplying the bend angle by the inside radius of the bend and then multiplying that by pi divided by 180
For example, if the bend angle is 90 degrees and the inside radius is 1 inch, the bending allowance would be 0.5 inches

1)What is GD&amp;T and explain some symbols, 2)how calcuate bending allowance in sheet metal.

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1)What is GD&T and explain some symbols, 2)how calcuate bending allowance in sheet metal.