Calculator catalog

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Found 27 calculators

Quality and production

Cp process capability

Calculates the Cp capability index from specification limits and process standard deviation.

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Quality and production

Cpk process capability

Calculates the Cpk capability index from specification limits, mean, and standard deviation. Cpk can be negative when the mean is outside tolerance.

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Quality and production

Simple process sigma level

Calculates an approximate sigma level as spec limit distance divided by standard deviation.

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Quality and production

Scrap rate

Calculates scrap percentage from scrap count and total count.

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Quality and production

Yield rate

Calculates yield percentage from good count and total count.

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Quality and production

First pass yield

Calculates FPY from good first-pass units and total units as an auxiliary quality metric.

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Quality and production

Rolled throughput yield

Multiplies three process-step yields to estimate overall RTY as an auxiliary quality metric.

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Quality and production

Rework rate

Calculates the percentage of units requiring rework as an auxiliary quality metric.

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Quality and production

DPMO

Calculates defects per million opportunities from defects, units, and opportunities per unit.

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Quality and production

PPM defects

Calculates defects per million units as an auxiliary quality metric.

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Quality and production

Xbar control limits

Calculates the existing sigma-based Xbar limits and Xbar-R chart limits from the grand mean and average range.

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Quality and production

p-chart control limits

Calculates basic p-chart limits from pBar and sample size without creating an SPC chart.

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Quality and production

np-chart control limits

Calculates basic np-chart limits from pBar and sample size without automatic process assessment.

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Quality and production

c-chart control limits

Calculates basic c-chart limits for an average count of nonconformities.

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Quality and production

u-chart control limits

Calculates basic u-chart limits from uBar and sample size.

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Quality and production

OEE

Calculates OEE from availability, performance, and quality percentages.

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Quality and production

Availability rate

Calculates OEE availability from operating time and planned production time.

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Quality and production

OEE quality rate

Calculates the OEE quality component from good count and total count.

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Quality and production

Tolerance stack worst case

Sums three tolerance contributors in a simple worst-case stack.

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Quality and production

Tolerance stack RSS

Calculates total tolerance as the root sum square of three contributors.

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Quality and production

Bilateral limits from nominal tolerance

Finds upper and lower limits for a symmetric bilateral tolerance.

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Quality and production

Unilateral upper limit

Calculates the upper limit from a nominal value and positive upper tolerance.

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Quality and production

Unilateral lower limit

Calculates the lower limit from a nominal value and signed lower tolerance.

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Quality and production

Clearance from hole and shaft

Calculates signed clearance as hole diameter minus shaft diameter.

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Quality and production

Expanded uncertainty

Multiplies standard uncertainty by a coverage factor.

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Quality and production

Measurement result with uncertainty limits

Finds lower and upper limits of a measurement result from a given uncertainty.

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Quality and production

Measurement uncertainty budget builder

Independent Type A/B budget with distributions, sensitivities, RSS, Welch–Satterthwaite and explicit k.

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