Dynnik O. Improvement of estimation methods of foundry production quality processes in machine-building industry

The object of the study - quality management process of foundry production in machine-building plant (FP MBP). The subject of the study - regulatory and procedural support of quality estimation of FP MBP functioning based on the TQM concept. The aim of the study - increase the level of technical and economic parameters of FP MBP through improving of estimation methods of its processes by developing the instruments on account of satisfaction level of all interested parties in the implementation and maintenance of management systems. Research Methods. General scientific methods of analysis, statistical methods of gathering and processing information; systematic approach, the theory of decision making, standardization, quality control, technologies of machine-building, methods of statistical quality control, system analysis, regression analysis, expert estimation method. Scientific novelty: developed the method of quality management of the processes of machine-building plant on the basis of a universal process-oriented model of quality management system of the QMS FP; first through the use of fuzzy set theory, the system of indicators to support decision making in quality management of FP production is proposed; first time on the basis of the relationship between the processes of the QMS and production quality characteristics, the model for estimation of the effectiveness of FP functioning is proposed; improved the method for estimation of the effectiveness of the QMS in accounting the requirements on management systems according to the indexes of satisfaction level of all interested parties. Practical significance: there were developed and practically implemented the instruments in respect of quantitative quality estimation of FP processes; for estimation of the effectiveness of the QMS FP the generalized index is proposed. It takes into account the satisfaction level of all interested parties; developed regulatory support of the QMS FP to improve the system activity by taking into account the requirements and regulation of interested parties' demands. The degree of implementation of research results is adopted for implementation in Co.Ltd "Motordetal - Konotop", JSC "SPA Chervonyi Metalist ", Co.Ltd "Konotopskyi armaturnyi plant" and put into the educational process of Sumy State University.