Foundry & Forging worked example
Casting Weight Variation with highest casting weight measured of 62 lb: a worked example
Push highest casting weight measured up to 62 lb and the picture changes. This example computes every intermediate figure at that operating point. Use it when pattern wear, sand compaction, core shift, gating changes, machining stock, or metal feed affects casting weight consistency.
The inputs for this scenario
- Highest casting weight measured: 62 lb (raised for this scenario; the documented default is 24.8)
- Lowest casting weight measured: 23.9 lb (unchanged)
- Nominal casting weight: 24.2 lb (unchanged)
Working through the calculation
- Applying the documented formula (Casting Weight Variation range = highest casting weight measured - lowest casting weight measured) to the inputs above produces each figure below.
- At this operating point the engine returns 0 % for casting weight variation spread, the number this scenario is built around.
- At this operating point the engine returns 0 value for spread.
- At this operating point the engine returns 62 value for minimum.
- At this operating point the engine returns 23.9 value for maximum.
How this compares with the baseline
- Against the tool's baseline example, where highest casting weight measured sits at 24.8 lb and the headline result is 0 %, this scenario lands almost exactly on the baseline at 0 %.
- It computes the weight range (highest minus lowest) and the delta of the sample midpoint to the nominal casting weight. 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
- Casting Weight Variation spread: 0 % (headline result)
- Spread: 0 value
- Minimum: 62 value
- Maximum: 23.9 value
Run it with your numbers
- Every input above is editable in the live Casting Weight Variation calculator, which recalculates instantly and can be shared with the inputs intact.
Last reviewed 2026-05-12.