Sheet metal processing process, both welding, cutting and other processes, natural and bending, but no matter the bending radius or bending angle, should be a little attention, so as not to meet the design requirements. When the sheet metal is bending, the outer layer of the corner area is stretched and the inner layer is compressed, so in the same thickness, the smaller the radius of the bending is, the more serious the tensile and compression of the material, even the cracks and broken.
As a result, we understand that the structure design of sheet metal bending parts should avoid too small bending corners, and the minimum bending radius is the straight edge height of the bending parts, so the straight edge height of the bending parts should not be too small. The minimum height on the side is the hole margin on the bending part when the bending parts on the side of the sheet metal are inclined.
In addition, the bending curve should avoid the location of the sudden change of size, so as to prevent bending stress at the sharp corner. It is best to move the bending curve to a certain distance, so that the bending effect can be guaranteed if the basic principle of departure from the sudden change of size is removed.
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