topofpage True Fracture Strain (TFS) Measurement Methods: Fracture Area (Af) True Fracture Strain (TFS) Measurement Methods: Fracture Types True Fracture Strain (TFS): Formability Classification and Rating System True Fracture Strain (TFS): Alternatives to TFS True...
topofpage Generating Forming Limit Curves from Equations Experimental Determination of Forming Limit Curves Differences between Forming Limit Curves and Forming Limit Diagrams If all stampings looked like a tensile dogbone and all deformation was in uniaxial tension,...
A Forming Limit Curve (FLC) is a map of strains indicating the onset of critical through-thickness necking for different linear strain paths. The FLC is dependent on the metal grade and the specific methods used in its creation. When paired with the strains...
Automotive product designers target small radii for springback control, sectional stiffness, packaging constraints, and design features. These small radii lead to new challenges as applications for AHSS grades continue to increase. One of these challenges is an...
Strength is defined as load divided by cross-sectional area. In a tensile test, the choice of when the cross-sectional area is measured influences the results. It is easiest to measure the width and thickness of the test sample before starting the pull. At any load,...
Most sheet metals have different “Global” and “Local” forming capabilities, so it is critical to understand their meaning to optimize grade selection, processing, and usage. Historically, most fabricators needed to consider only global formability when designing and...
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Formability is simply the ability of a sheet metal product to be formed into the desired shape reliably and repeatedly using the selected metal grade and stamping system parameters like the forming process, lubrication, die materials, and tool coatings. Successful...