A Challenging Point: Sharp Teeth
Stamping to a sharp point presents a unique challenge in our industry. The finer the point, the more quickly tooling wears down—and the higher the risk of issues like part distortion, burr formation, and inconsistent tolerances.
At ACRO, we specialize in overcoming exactly these kinds of challenges.
Recently, we completed a project involving a series of precision parts that not only had to taper to exceptionally fine points but also required a precise radius profile. This shape was critical to ensure a perfect fit and locking mechanism with a custom-toothed nut—leaving no room for error.
To achieve this, our engineering and tooling teams collaborated to:
- Optimize die geometry for extended tool life while maintaining edge definition
-Implement progressive die strategies to control material flow and reduce stress on sharp features
-Utilize in-die sensors and quality checks to ensure consistent part quality
In the past, when we had to make sharp teeth for a can opener, we would stamp the general shape and then come back to shave both sides to form a point.
Although this requires more operations and increases die maintenance (to maintain a sharp cutting edge), the cost is still considerably lower than machining or grinding.
