Filame launches its online Flat Spring, Leaf & Clip Bending Calculator
Size flat strip springs, leaf springs, and stamped clips online: calculate spring rate, deflection, bending stress, and transfer specs in 1 click (EN 10132-4).
Filame Group has expanded its online engineering toolkit with the Flat Spring, Cantilever & Clip Bending Calculator. Built for mechanical designers, R&D engineers, and technical buyers, this free browser tool lets you size flat strip springs and elastic clips before moving to prototyping.
Instant mechanical sizing (EN 10132-4 / EN 10151)
Using Euler-Bernoulli beam theory, the calculator computes the key mechanical parameters of your flat spring or electrical contact in real time:
- Three support topologies: Rectangular cantilever, tapered/trapezoidal clip (b₀ → b₁) for uniform stress distribution, and 3-point leaf spring.
- Dual solve mode: Calculate deflection (f) from an applied force (F), or determine the force required to reach a target deflection.
- Spring rate & peak stress: Instant readout of spring rate R (N/mm), maximum bending stress (σ_max), and a safety status check against yield strength.
- Live bending profile: Dynamic schematic highlighting the deflected curve and maximum stress zone.
Seven industrial strip grades from Filame stock
The calculator includes certified properties for seven widely used strip alloys:
- Carbon spring steels: C75S / XC75 and C100S / XC100 (E = 206 GPa)
- Stainless spring strips: 1.4310 (AISI 301) (E = 185 GPa) and 17-7 PH (1.4568) (E = 195 GPa)
- Conductive & high-temp alloys: CuBe2 (CW101C), CuSn6 (CW452K), and Inconel X-750 (E = 214 GPa)
Seamless transition from sizing to production
The tool automatically checks compatibility with Filame’s strip capabilities (0.15 mm – 6.0 mm) and lets you transfer your calculation to our engineering office in one click.
👉 Open the Flat Spring Calculator, explore our custom flat & leaf springs, or contact our engineering team.