Abrasive Blasting, Shot Peening & Surface Prep worked example

Surface Profile Risk Estimate with profile miss severity of 20 score: a worked example

This scenario runs the surface profile risk estimate calculation on the strong side: profile miss severity of 20 score, with every other input held at its documented default. a coating inspector or blast lead wants a quick risk screen before releasing a profile-critical surface prep job

The inputs for this scenario

  • Profile miss severity: 20 score (raised for this scenario; the documented default is 8)
  • Profile miss likelihood: 5 score (unchanged)
  • Detection difficulty: 4 score (unchanged)

Working through the calculation

  • Applying the documented formula (Profile risk score = severity × 0.40 + likelihood × 0.35 + detection difficulty × 0.25) to the inputs above produces each figure below.
  • At this operating point the engine returns 10.75 profile risk score for profile risk score, the number this scenario is built around.
  • At this operating point the engine returns 20 score for profile miss severity.
  • At this operating point the engine returns 5 score for profile miss likelihood.
  • At this operating point the engine returns 4 score for detection difficulty.

How this compares with the baseline

  • Against the tool's baseline example, where profile miss severity sits at 8 score and the headline result is 5.95 profile risk score, this scenario comes in 80.67% above the baseline at 10.75 profile risk score.
  • Use it when triaging blast jobs for inspection intensity, building a coating QC plan, or prioritizing process fixes across multiple parts or contracts. 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

  • Profile risk score: 10.75 profile risk score (headline result)
  • Profile miss severity: 20 score
  • Profile miss likelihood: 5 score
  • Detection difficulty: 4 score

Run it with your numbers

  • Every input above is editable in the live Surface Profile Risk Estimate calculator, which recalculates instantly and can be shared with the inputs intact.

Last reviewed 2026-05-12.