DOI: https://doi.org/10.32515/2664-262X.2023.7(38).1.30-36

A Systematic Approach to Forming Quality Indicators for Refurbished Parts

Mykhailo Chernovol, Ihor Shepelenko

About the Authors

Mykhailo Chernovol, Professor, Academician of the National Academy of Agrarian Sciences of Ukraine, Doctor in Technics (Doctor of Technic Sciences), Central Ukraіnian National Technical University, Kropyvnytskyi, Ukraine, ORCID ID: 0000-0003-3048-6833

Ihor Shepelenko,Professor, Doctor in Technics (Doctor of Technic Sciences), Central Ukraіnian National Technical University, Kropyvnytskyi, Ukraine, e-mail: kntucpfzk@gmail.com, ORCID ID: 0000-0003-1251-1687

Abstract

The paper considers the technological process of parts restoration as a system of interrelated elements that can influence the formation of quality indicators of restored parts. It is established that the technological process has all the necessary properties that are required for systems. However, modern methods and criteria used in the design of the technological process of parts recovery focus on the selection of the optimal recovery method, which is only part of the technological process. Therefore, the paper sets the goal of presenting the technological process of restoration as a system of interconnections between individual elements that allow to purposefully influence the quality indicators of restored parts. The main hierarchical levels of technological design of part recovery are defined. In turn, the technological process of restoration as a whole is presented in the form of functions of connections between individual elements of the subsystem. This made it possible to present the overall structure of the technological process of restoring worn parts as a system. Taking into account the peculiarities of the system's functioning, an approach is proposed, according to which all elements of the system have an impact on the formation of quality indicators of the restored parts. The functional links between quality indicators and elements of the technological process at different levels of evaluation are established. The main ways to ensure the required quality indicators through the elements of the technological process are determined: methods, equipment, materials, modes, equipment, etc. The proposed approach to the formation of quality indicators of remanufactured parts makes it possible to study the cause-and-effect relationships between the parameters of technological processes and quality indicators of remanufactured parts, as well as to establish ways to improve them. The ways to ensure the quality of remanufactured parts at the main stages of the product life cycle are shown.

Keywords

technological process of part restoration, restoration method, restoration quality, systematic approach, system elements

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References

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Copyright (c) 2023 Mykhailo Chernovol, Ihor Shepelenko