Why does V2 ask for rejected frames instead of accepted frames?

Accepted frames are built minus rejected, the definition of first-pass yield. Asking for the two counts the plant records stops accepted from exceeding built and keeps the yield at or below 100%.

What if the rejected count exceeds the built count?

The calculator blocks that population, because a period cannot reject more frames than it built. Check that both logs cover the same work order and date range.

Is rework counted as rejected on this page?

Yes. A frame inspection sends to rework is not a first-pass acceptance, so it sits in the rejected count until the frame passes a later inspection.

How is this different from a scrap rate?

Scrap removes frames from the population; rework keeps them. This page measures first-pass acceptance, so reworked frames that later pass still count against the period's yield.

Agricultural Equipment & Farm Machinery Manufacturing calculator

Fabricated Frame Yield Calculator

Find the first-pass yield of the frame line from the frames it built and the frames inspection rejected for rework. The gap shows how far the yield sits from the quality plan target.

What this calculator does

First-pass frame yield from total frames built and frames rejected for rework, with the gap to a yield target.

Formula used

Accepted frames = total frames built − frames rejected for rework
Frame yield = accepted frames ÷ total frames built × 100
Yield gap to target = target first-pass yield − frame yield, in percentage points

Inputs explained

Total Frames Built: Frames started and completed in the period, from the production log.
Frames Rejected for Rework: Frames rejected by inspection for rework, from the quality log.
Target First-Pass Yield: First-pass yield target for the frame line, from the quality plan.

How to use the result

Best suited to checking a week of frame production, setting the quality plan yield target.
Yield treats every rejected frame equally, so a cosmetic reject and a scrapped frame lower it the same. It records inspection outcomes only; rework hours and scrap cost need a separate quality cost view.

Current U.S. benchmarks

Industrial natural gas averages $4.58 per Mcf (EIA, Jul 2026), down 1.3% from a year earlier, with industrial electricity at 9.77 cents per kWh. Process heating and refrigeration budgets track both.
Steel mill PPI stands at 381.162 (BLS, Aug 2026), up 23.4% from a year earlier. New factory orders are up 8.5% year over year (Census).
The U.S. has 21,668 machinery manufacturing establishments employing about 1,086,146 workers (Census County Business Patterns, 2023).

Common questions

Why does V2 ask for rejected frames instead of accepted frames? Accepted frames are built minus rejected, the definition of first-pass yield. Asking for the two counts the plant records stops accepted from exceeding built and keeps the yield at or below 100%.
What if the rejected count exceeds the built count? The calculator blocks that population, because a period cannot reject more frames than it built. Check that both logs cover the same work order and date range.
Is rework counted as rejected on this page? Yes. A frame inspection sends to rework is not a first-pass acceptance, so it sits in the rejected count until the frame passes a later inspection.
How is this different from a scrap rate? Scrap removes frames from the population; rework keeps them. This page measures first-pass acceptance, so reworked frames that later pass still count against the period's yield.

Last reviewed 2026-10-01.