punch and die

• Bending Basics: 6 steps to successful die selection for press brakes

  Nov 24, 2025

  What inside bend radius you can achieve hinges on tonnage requirements and available die-opening widths     Figure 1 To get the most out of your press brake tooling, the tangent of the bend, where the radius starts, ideally should be halfway down the die face. In this situation, half the die face is equal to the outside setback (OSSB), the distance from the outside mold line (planes that run parallel to the workpiece) to the tangent point of the bend.   Question: Our fabrication department is documenting standard processes to select the correct punch and die combination to produce the desired results when air bending. We want to achieve a 90-degree bend for a 0.0751-in.-thick piece of 304 stainless steel with an inside bend radius that’s also 0.075...

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