Analysis of technological inheritability of product quality parameters by the criterion of material homogeneity
DOI:
https://doi.org/10.31471/1993-9965-2022-2(53)-7-16Keywords:
Industry4.0, functionally oriented technologies, technological damage, material homogeneity, Weibull homogeneity coefficientAbstract
Currently, numerous studies and publications deal with the development of technological finishing processes in the design of effective technologies for processing product parts at the stage of their formation in the life cycle. At the same time, the peculiarities of the formation of inheritance properties of the material of parts using rational criteria for evaluating the degree of material degradation, both at the stage of formation and in the further operation of a technological production facility, have not been sufficiently studied. In design and technological work, it is difficult to predict the degree of influence of all technological parameters and take into account in accordance with the principles of technological inheritance of the properties of machine parts. As a result of the manifestation of structural and structural stress concentrators in the manufacture of machine parts, technological defects arise and form. Technological defects under unfavorable operating conditions become damage to the surface layers of рroducts, which leads to their further destruction and failure of the machine with disastrous consequences for the environment. The article refers to the difficulties in ensuring the performance and reliability of machine parts when implementing the principle of function-oriented design of technological processes. It is proposed to use material homogeneity as a parameter for the analysis of technological inheritance of surface properties of products after their processing, which integrally determines the state of the material by the value of the established hardness. The criterion of material homogeneity is presented as a set of indicators for the analysis of technological inheritance of quality parameters of parts during their manufacture by cutting or plastic deformation and control. The proposed methodology was tested during the manufacture of a shaft for the drive drum of a conveyor belt TS 1850. The regularities of formation of quality parameters of products and evaluation of the degree of degradation of their material during machining of functional surfaces of engineering objects were established.
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