Design requirements for round hole flanging process of precision stamping parts

When designing the round hole flanging process of precision stamping parts, it should be noted that the shape and size requirements of the workpiece are as follows:
The radius of the fillet between the vertical edge of the flange and the plane should not be too small;
The height of the flange is not less than 1.5 times the fillet radius;
Flange flange and outer edge should be sufficient, too small;
The corresponding thickness of the flange should be within a certain range, otherwise the vertical edge will be easily broken when the flange is turned;

The surface roughness of the flanged pre-machined holes directly affects the quality and ultimate deformation of precision metal stamping parts.

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