Forming Quality Analyser — Forming Quality

§ 1.0 MATERIAL CARD

Sheet metal parameters

Drag a slider or type a value — both stay in sync. Plots update ~200 ms after you stop moving the control. Click Assess for the verdict.

Thickness t₀ [mm] [0.5 – 6.0] · default 1.5

Hollomon K [MPa] [100 – 3000] · default 1310

Hardening exponent n [–] [0.01 – 0.6] · default 0.16

r₀ (RD) [–] [0.1 – 4.0] · default 0.83

r₄₅ (45°) [–] [0.1 – 4.0] · default 0.94

r₉₀ (TD) [–] [0.1 – 4.0] · default 0.97

§ 2.0 MEASURED STRAIN STATE

Major strain ε₁ [–] [0.0 – 1.0] · default 0.15

Minor strain ε₂ [–] [-0.5 – 0.5] · default -0.05

Measured thickness (optional) [mm] [0.3 – 6.0] · default 1.5

Use measured thickness for thinning

FIG A · FORMING LIMIT DIAGRAM

Slope: draw side −1 · stretch side +0.6 (Keeler-Brazier)

Operating point: ε₁ = 0.150 · ε₂ = −0.050

Black dot = current operating point · copper curve = FLC.

FIG B · HOLLOMON HARDENING CURVE

σ = K · εₚⁿ

K = 1310 MPa · n = 0.16

Plastic strain εₚ on x; flow stress σ on y.