formingskurve

Formingskurve, literally “forming curve,” is a term used in engineering and manufacturing to describe a graphical representation that summarizes how a forming process behaves as process parameters change and how that affects the final form or formability of a material. The curve is typically constructed from experimental data or numerical simulations and serves as a compact way to visualize process limits, efficiency, and quality outcomes.

Construction and interpretation: A formingskurve can take different shapes depending on the process and the variables chosen. Commonly it plots a measure of formability or final geometry against a controllable parameter such as force, displacement, blankholder pressure, or material thickness. In some applications it may show the onset of defects (for example thinning, wrinkling, or necking) as a function of the selected variables. Because it is not a single standardized curve, practitioners tailor the axes to the specific forming operation and material system.

Applications: The curve is used in process development, tool design, and quality control. It helps engineers select appropriate tooling clearances, lubrication regimes, and process speeds, and it supports optimization and risk assessment in sheet metal forming, plastic forming, forging, extrusion, and related forming operations. It also aids in validating simulations against experimental results.

Relation to related concepts: Formingskurve is part of a family of process curves and is related to, but distinct from, forms such as forming limit diagrams or flow/constitutive curves. It serves as a practical, operation-specific summary of forming behavior.