Computer-implemented system and method for capability zone-based manufacturing quality control
OwnerMichael H S Dunlopinventor
Life of this patent
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Abstract
A computer-implemented system and method for capability zone-based manufacturing quality control are provided. A specification for manufacturing a part feature is obtained, the specification including a nominal and a tolerance. A plurality of measurements for the feature are obtained. A difference is determined between the nominal and each of the measurements. The difference for each of the measurements is compared to the tolerance. Each of the measurements is assigned into one of a plurality of capability zones of measurements based on the comparison. Visual representations of the capability zones into which the measurements were assigned are displayed.
Claims20
A computer-implemented system for capability zone-based manufacturing quality control, comprising:
- a database, comprising:
- a specification for manufacturing a part feature, the specification comprising a nominal and a tolerance;
- a plurality of measurements for the feature;
- a processor configured to execute code, comprising:
- a difference module configured to determine a difference between the nominal and each of the measurements;
- a comparison module configured to compare the difference for each of the measurements to the tolerance and to express the difference as a value comprising one of a percentage of the tolerance and a fraction of the tolerance;
- an assignment module configured to assign each of the measurements into one of a plurality of capability zones of measurements based on the calculated values, each of the capability zones associated with one or more value intervals and comprising those of the measurements for which the calculated values fall within one of the value intervals associated with that capability zone, wherein the value intervals associated with each of the capability zones differ from the value intervals associated with the remaining capability zones;
- and
- an output module configured to output visual representations of the capability zones into which the measurements were assigned.
A computer-implemented method for capability zone-based manufacturing quality control, comprising the steps of:
- obtaining a specification for manufacturing a part feature, the specification comprising a nominal and a tolerance;
- obtaining a plurality of measurements for the feature;
- determining a difference between the nominal and each of the measurements;
- comparing the difference for each of the measurements to the tolerance and expressing the difference as a value comprising one of a percentage of the tolerance and a fraction of the tolerance;
- assigning each of the measurements into one of a plurality of capability zones of measurements based on the calculated values, each of the capability zones associated with one or more value intervals and comprising those of the measurements for which the calculated values fall within one of the value intervals associated with that capability zone, wherein the value intervals associated with each of the capability zones differ from the value intervals associated with the remaining capability zones;
- and
- outputting visual representations of the capability zones into which the measurements were assigned,
- wherein the steps are performed on a suitably programmed computer.
Dependencies are inferred from the claim text.