PROCESS CAPABILITY STUDY IN SERIAL PRODUCTION OF AUTOMOTIVE PARTS

In the manufacturing processes there has long been demanded the increasing requirements for high quality products especially in automotive industry. In order to assure such as high quality standards the production process and further the product quality the organization must have implemented tools enabling to monitor and have the ambition to dwindle variability. The low variability provides better process predictability, standardized quality level, less occurrence of non-conformities; the products reveal better longevity and finally the satisfied customers. The long lasting endeavor for widely recognized parameters with ambition to determine current status of quality parameter has brought indicators in a form of Cp and Cpk into the business. The article deals with theoretical approach of previously mentioned indicators, an observation of critical to quality parameters in production process, definition of resulting problems, and finally the proposal of improvement including its verification.