This is an integrated setup designed to adapt to universal load frames and hydraulic presses in order to enable complete Hole Expansion Ratio (HER) testing of sheet metal samples. This is a complete kit that encompasses the mechanical testing components to perform hole expansion, as well as a dedicated camera system to track and measure the growth of the hole up to fracture (both in-situ and ex-situ measurements of the HER value). This setup enables complete and accurate hole expansion ratio (HER) testing while utilizing existing load frames and testing equipment (without the need for a dedicated HER tester).
Adaptability: Most universal load frames (20kN or higher) with modern electronics and an I/O card (INSTRON, ZwickRoell) as well as most servohydraulic presses (Interlaken)
Max. Force: ~20kN
Max. Sheet Thickness: ~2.5mm
Max. Test Speed: ~1 mm/s
Punching Direction: Tension & Compression