An Application of Process Capability Index CpAP on Plastic Materials Quality Improvement

Abstract

Process capability index (PCI) has been widely used to determine whether process quality meet the customer requirements in manufacturing industries. In this paper, an integrated process capability index CpAP is presented for the manufacture of multi-process based on the process capability index Cpu, minimum individual process capability C0, accuracy A, and precision P. A case study is used to demonstrate the practicality and feasibility of the integrated process capability index. The resulting cartridges meet the customer demand for match quality.