Abrasive Blasting, Shot Peening & Surface Prep worked example

Surface Profile Risk Estimate with profile miss severity of 4 score: a worked example

This worked example runs the surface profile risk estimate numbers for a tougher week than the baseline: profile miss severity of 4 score instead of the typical 8 score. Score the risk that blast profile will miss the required anchor pattern using profile severity, occurrence, and detection ratings.

The inputs for this scenario

  • Profile miss severity: 4 score (the input this scenario stresses; the baseline uses 8)
  • Profile miss likelihood: 5 score (held at the documented default)
  • Detection difficulty: 4 score (held at the documented default)

Working through the calculation

  • The calculation starts from the formula this tool documents: Profile risk score = severity × 0.40 + likelihood × 0.35 + detection difficulty × 0.25.
  • Profile risk score works out to 4.35 profile risk score at these inputs, and this is the headline figure for the scenario.
  • Profile miss severity works out to 4 score at these inputs.
  • Profile miss likelihood works out to 5 score at these inputs.
  • Detection difficulty works out to 4 score at these inputs.

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 26.89% below the baseline at 4.35 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. A result at this level usually justifies acting on the stressed input before touching anything else, because every other figure in the table is downstream of it.

Results at a glance

  • Profile risk score: 4.35 profile risk score (headline result)
  • Profile miss severity: 4 score
  • Profile miss likelihood: 5 score
  • Detection difficulty: 4 score

Run it with your numbers

  • To rerun this with your own numbers, open the live Surface Profile Risk Estimate calculator, set profile miss severity to your actual value, and adjust the remaining inputs to match your operation.

Last reviewed 2026-05-12.