How to Effectively Prevent Warping and Deformation of Precision Stamped Parts?

How to effectively prevent warping and deformation of precision stamped parts? The following preventive measures are commonly adopted by stamping manufacturers:

1. Reasonably select the blanking clearance.

2. Add pressure plates or hold-down plates in the die structure to ensure the sheet contacts the pressure plate plane and apply adequate holding force.

3. Regularly inspect die punch edges and correct negative taper.

4. For complex shapes with many inner holes, use uniform shearing force, increase holding force, prepress the strip, and use high-precision guide pillars or high-precision presses for blanking.

5. Flatten the sheet before stamping; if warping remains, perform secondary flattening with a leveling die.

6. Regularly clean debris from die cavities, lubricate thin sheet surfaces, and add oil or air holes in the die structure.

By following these measures, manufacturers can effectively prevent warping and deformation of precision stamped parts and ensure product quality and stability.