What are the requirements for the structural design of stamped parts?

When designing the structure of stamped parts, the outer shape and inner holes of the workpiece should have rounded corners; sharp corners are not allowed. The minimum allowable rounded corner radius is related to the material thickness.

The punching diameter, long slot width, and edge distance of the workpiece cannot be too small. In precision stamping of gears, the pitch circle tooth width of the gear cannot be less than 0.6t, and the top and root of the tooth profile should have a rounded transition, not a sharp corner transition.

The outer contour shape of the stamped part should transition as smoothly as possible, without abrupt changes. On the workpiece surface, when designing symbols or markings or during die-cutting, the die-cutting depth should not exceed 0.25t.

Stamped workpiece production generally relies on high-pressure precision blanking. The geometry, dimensional tolerances, form and position tolerances, and shear surface quality of precision-blanked workpieces are far superior to those of workpieces produced by ordinary blanking.