What is Process Capability?

Within the scope of goods issue, the company provides its customers with raw materials and stocks as well as semi-finished or safe finished products in the trade. They indicate how reliably the targets specified in the specification are achieved.

Previously, a CpK value of at least 1.00 (the distance of the nearest tolerance limit from the process mean is at least 3 standard deviations) was considered sufficient, but later the requirement was raised to 1.33 (4 standard deviations). Previously, a CpK value of at least 1.00 (the distance of the nearest tolerance limit from the process mean is at least 3 standard deviations) was considered sufficient, but later the requirement was raised to 1.33 (4 standard deviations). It should be noted that, by its very nature, an overall system consisting of many components has a much higher error rate than the individual components. For a sufficiently high CpK value of the system, the components must have an even significantly higher value.