UniPunch tooling can be used to simultaneously punch a hole and extrude the material down. Applications include for self-tapping sheet metal screws or, in thicker material, to permit tapping for machine screws. Die buttons with oversized internal diameters, typically with a .020″ radius instead of a cutting edge, are used to permit the material to flow downward and punch an extruded hole. This technique can be used in any UniPunch unit to make relatively shallow extrusions; to accommodate deeper extrusions with standard UniPunch tooling, the Feed Clearance Unit (“FCU”) may be required so the part can be removed after forming. When placing an order or requesting a quote, please specify type and thickness of material and screw size.
Let’s Discuss How UniPunch Can Help You
Tell us about your project, and we’ll recommend the right UniPunch solution for your needs.