Uploaded February 2025 | Updated September 2026, 3 weeks ago

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Understanding the Blank and Draw Process in a Cupper

The cupper transforms flat coil stock into cups in a single stroke using the blank and draw process:

Blanking: The coil stock is cut into flat, circular blanks.
Drawing: The blanks are reshaped into cups without significantly thinning the metal.

Key steps in the process:
- The draw pad clamps the coil stock in place, preventing wrinkling.
- The cut edge shears the stock into blanks, and the die center assembly pushes the blanks through the blank and draw die to form cups.
- Precise lift-off timing ensures cup quality, while compressed air ejects the cups for the next stage.

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