PT Journal AU Cezova, E TI Economical and Statistical Optimization of the Maintenance in the Production Process SO Manufacturing Technology Journal PY 2023 BP 32 EP 39 VL 23 IS 1 DI 10.21062/mft.2023.004 DE Quality control; control chart; process capability; process control; injection moulding; plastic maintenance management; economic and statistical optimization; non-conforming process management AB The article presents a comprehensive example that demonstrates the control of a plastic injection process in practice. It includes measurement and analysis of the production process, its control using a control diagram to bring the production process to a state under statistical control by applying tests of non-random clusters and subsequent evaluation of process capability. The last part of the article gives an example of the maintenance of economical statistical optimization for four scenarios. ER