Foundry & Forging worked example

Die Life Estimator at 98% usable die-life efficiency: a worked example in foundry & forging

This scenario runs the die life estimator calculation on the strong side: 98% usable die-life efficiency, with every other input held at its documented default. Use it when die life, cavity wear, heat checking, soldering, repair frequency, or part volume affects tooling purchases and production risk.

The inputs for this scenario

  • Planned die shots or forgings: 25,000 parts (unchanged)
  • Die wear per part: 0 die life units / part (unchanged)
  • Usable die-life efficiency: 98 % (raised for this scenario; the documented default is 85)

Working through the calculation

  • Applying the documented formula (Theoretical die life estimator requirement = planned die shots or forgings × die wear consumed per part) to the inputs above produces each figure below.
  • At this operating point the engine returns 1.28 units for required die life estimator quantity, the number this scenario is built around.
  • At this operating point the engine returns 1.25 units for theoretical die life estimator requirement.
  • At this operating point the engine returns 0.03 units for die life estimator loss allowance.
  • At this operating point the engine returns 98 % for usable die-life efficiency.

How this compares with the baseline

  • Against the tool's baseline example, where usable die-life efficiency sits at 85% and the headline result is 1.47 units, this scenario comes in 13.27% below the baseline at 1.28 units.
  • Use it when planning tooling for a production run, sizing spare dies, or deciding when a die must be pulled for refurbishment. Treat this as a target state: the delta against the baseline quantifies what the improvement is worth before you commit to chasing it.

Results at a glance

  • Required die life estimator quantity: 1.28 units (headline result)
  • Theoretical die life estimator requirement: 1.25 units
  • Die Life Estimator loss allowance: 0.03 units
  • Usable die-life efficiency: 98 %

Run it with your numbers

  • Every input above is editable in the live Die Life Estimator calculator, which recalculates instantly and can be shared with the inputs intact.

Last reviewed 2026-05-12.