Casting Yield Calculator
Measures good casting mass as a share of poured metal. The page separates the mathematical result from the operating assumptions that belong in the mold or pattern record.
Add the process geometry
Casting yield
Casting Yield: assumptions outside the equation
Estimate the order of magnitude before calculating. Then change one input while holding the others fixed and predict whether casting yield should rise or fall.
Rearrange Yield = Wc / Wp x 100 to recover one entered value. Agreement with the source record checks the algebra in a different direction.
Using casting yield only under matched conditions
Establish which casting yield is required before entering good casting weight, total poured metal. The printed equation then provides a check on whether the calculation is being run in the intended direction.
Use the printed % as a dimensional target. Work backward through the equation to identify a missing conversion or a field entered on the wrong basis. That distinction matters before casting yield is carried into later work.
Casting yield: moving from baseline to a second case
Treat the worked value as a baseline, then alter one of good casting weight, total poured metal while leaving the other entries fixed. Predict the direction and approximate size of the change before reading the new casting yield. This separates a real relationship in the formula from a typing error or an unnoticed unit conversion.
Use historical or drawing limits to bracket casting yield. A sensitivity range grounded in the actual process is more informative than a best-case combination that cannot be produced.
Name the operating state behind each casting yield. This prevents a catalog maximum, a shop average, and a drawing nominal from being mistaken for one simultaneous condition.
Attaching units and conditions to casting yield
Store casting yield with its input values, units, date, product or operation, and the equation version. Do not let extra displayed digits imply measurement accuracy the source data did not have.
Separate computational guard digits from usable precision. For casting yield, final rounding should reflect the least certain field and the resolution of the next operation.
Back-solving from casting yield
The equation uses good casting weight, total poured metal to report casting yield in %. Returns, gates, risers, dross, and rejected castings must follow one consistent mass boundary.
The sample casting yield is 72.41 percent.
Casting Yield: what the number describes
Casting or molding geometry, material properties, process settings, and production counts should share one process boundary. In this setup, total poured metal is part of the same documented condition.
Record when and where good casting weight, total poured metal were measured. Reusing casting yield after a setup change without that context can be more misleading than a visibly approximate estimate.
The same procedure record can also support casting gating ratio.
What remains outside this casting and molding relationship
Returns, gates, risers, dross, and rejected castings must follow one consistent mass boundary.
Flow, heat transfer, shrinkage, pressure, cooling, and material behavior can shift a casting or molding result. The immediate output being checked here is casting yield.
Before recording casting yield
How can the casting yield arithmetic be checked independently?
Use Yield = Wc / Wp x 100, solve backward for one known entry, and compare it with the original record. A unit check provides a second test.
Does the calculated casting yield replace the governing specification?
No. The calculated casting yield evaluates one stated relationship; drawings, procedures, control plans, equipment limits, and acceptance rules still govern the work.