Sheet Metal Testing Machines: Erichsen Test

Sheet Metal Forming Testing – Precise Characterization of Formability and Process Window
ZwickRoell's BUP series sheet metal forming machines, available through ZRS Testing Systems, are used to determine characteristic values for the formability of sheet metal—a crucial basis for both alloy development and the optimization of pressing processes in manufacturing.

The machines are available in five capacity levels (100 kN – 1,000 kN) and enable deep drawing, bending, and punching in a single test sequence (from model BUP 200 and up). Test parameters such as deep-drawing speed and sheet clamping force can be adjusted individually, providing a highly flexible tool for both development and verification.

The following tests can be performed as standard on ZwickRoell's BUP:

• Cupping test to ISO 20482
• Earing test to DIN EN 1669
• Hole expansion test to ISO 12004
• Forming limit curve to ISO 16630

Examples of applications:
Formability Analysis of New Alloys and Thin-Gauge Steel Grades

Development of metalworking methods, such as deep drawing or hydroforming

Quality assurance in mass production, with reproducible, standardized test results

With the optional testXpert III software, the entire testing process can be controlled and evaluated digitally, including graphical analysis and traceable documentation—tailored to your quality requirements.

ZRS supports you every step of the way—from needs analysis and equipment selection to installation, training, and calibration. The machines are optimized to deliver reliable and comparable results, whether you’re working on product development, prototyping, or process monitoring.