Technological Control of the Heredity of Operational Quality Parameters  in the Engine Camshaft Recovery

Kheifetz, M. L.; Prement, G.B.; Gretsky, N.L.

doi:10.17277/amt.2019.01.pp.012-020

Cited by 1 publication

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“…The conducted research allowed to identify the processes of transferring the properties during recovery, hardening, and surface treatment with varying wear degrees of the bearing journals and cams of the UMZ-4173 engine camshaft, and to develop regulations for the technological process operations in accordance with them [26,27].…”

Section: Engineering Failure Analysismentioning

confidence: 99%

Technological Control on the Heredity of Operational Quality Parameters

Колмаков¹,

Kheifetz²,

Gretskiy³

et al. 2020

Engineering Failure Analysis

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Technological heredity of operational properties in the processes of manufacturing, operation, and restoration of machine parts is proposed to describe the graph reflecting the coefficients of transmission and mutual influence of physical, mechanical, and geometric parameters. The technological control methods of the heredity of operational properties of parts are considered, including the following: measuring parameters of the most critical parts; determining technological heredity mechanisms on the basis of transfer coefficients and mutual influence of operational properties; analyzing technological barriers during intensive effects of energy flows; and developing measures for controlling technological processes. The technological heredity of the operational quality parameters in the process of recovery and processing of the bearing journals and cams, as well as wearing of the camshaft working surfaces over admissible limits are considered. According to the findings, it is recommended: to control the deformation of the part after machining operations; to eliminate the editing operation after heat treatment; to use a combination of methods and a combination of technological effects in recovering the part surfaces with wear exceeding the maximum permissible values. The need for surfacing and subsequent tempering processes to ensure consistently high physicomechanical properties of coating materials and strictly regulate the modes of surface finishing is noted.

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Section: Engineering Failure Analysismentioning

confidence: 99%