UV Curing worked example

UV Shadowing Risk Score with part geometry shadow severity of 140 score: a worked example

What does the result look like when part geometry shadow severity reaches 140 score? The full calculation is worked below with real intermediate numbers. Use it during DFM review of a new part, or when a defect spike traces to specific features (a bonded edge under a flange, an undercut adhesive joint).

The inputs for this scenario

  • Part geometry shadow severity: 140 score (raised for this scenario; the documented default is 55)
  • Fixture / conveyor lane occlusion risk: 30 score (unchanged)
  • Beam angle & line-speed detection risk: 20 score (unchanged)

Working through the calculation

  • Applying the documented formula (Risk score = (geometry × 0.5) + (fixture × 0.3) + (exposure × 0.2)) to the inputs above produces each figure below.
  • At this operating point the engine returns 71.5 shadow risk score for uv shadowing risk score, the number this scenario is built around.
  • At this operating point the engine returns 140 score for geometry exposure (severity).
  • At this operating point the engine returns 30 score for fixture / lane (occurrence).
  • At this operating point the engine returns 20 score for exposure angle / speed.

How this compares with the baseline

  • Against the tool's baseline example, where part geometry shadow severity sits at 55 score and the headline result is 37.5 shadow risk score, this scenario comes in 90.67% above the baseline at 71.5 shadow risk score.
  • A figure at this level is achievable when part geometry shadow severity is genuinely sustained, not just peaked for a shift. It ranks relative risk from your subjective 0-100 inputs; it is not a substitute for a profiling radiometer reading of the actual dose in the shadowed zone.

Results at a glance

  • UV shadowing risk score: 71.5 shadow risk score (headline result)
  • Geometry exposure (severity): 140 score
  • Fixture / lane (occurrence): 30 score
  • Exposure angle / speed: 20 score

Run it with your numbers

  • Every input above is editable in the live UV Shadowing Risk Score calculator, which recalculates instantly and can be shared with the inputs intact.

Last reviewed 2026-05-12.