Heat Treatment, Furnaces & Thermal Processing worked example
Heat Treat Rework Rate at 2.3% target rework rate for the line: a worked example
Push target rework rate for the line up to 2.3% and the picture changes. This example computes every intermediate figure at that operating point. Use it to track rework rate against target in Heat Treatment, Furnaces & Thermal Processing.
The inputs for this scenario
- Parts reworked after heat treat: 35 units (unchanged)
- Total parts heat treated in the batch: 1,000 units (unchanged)
- Target rework rate for the line: 2.3 % (raised for this scenario; the documented default is 2)
Working through the calculation
- Applying the documented formula (Rework rate = parts reworked ÷ total parts heat treated × 100) to the inputs above produces each figure below.
- At this operating point the engine returns 3.5 % for rework rate, the number this scenario is built around.
- At this operating point the engine returns -1.2 points for gap to target.
- At this operating point the engine returns 35 count for parts reworked.
- At this operating point the engine returns 1,000 count for total parts heat treated.
How this compares with the baseline
- Against the tool's baseline example, where target rework rate for the line sits at 2% and the headline result is 3.5 %, this scenario lands almost exactly on the baseline at 3.5 %.
- It computes the share of a heat-treated batch that required rework, then subtracts your target to show whether you are above or below goal. The value of this scenario is the size of the gap it exposes: that gap, priced out over a year, is the budget you can justify spending to close it.
Results at a glance
- Rework rate: 3.5 % (headline result)
- Gap to target: -1.2 points
- Parts reworked: 35 count
- Total parts heat treated: 1,000 count
Run it with your numbers
- Every input above is editable in the live Heat Treat Rework Rate calculator, which recalculates instantly and can be shared with the inputs intact.
Last reviewed 2026-05-12.