ISSN (print) 1995-2732
ISSN (online) 2412-9003

 

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DOI: 10.18503/1995-2732-2022-20-1-83-94

Abstract

Problem Statement (Relevance). The method, developed by the authors for determining the parameters of the allowance distribution along main and connecting rod journals of a crankshaft forging for a heavy truck, contributes to efficient control of batches of crankshaft forgings for heavy trucks and identification of forgings that are acceptable for individual geometric parameters, but fail to provide an allowance for connecting rod journals of the crankshaft. The developed technique has a greater potential in terms of not only monitoring, but also control of the geometrical accuracy of forgings in the operations of manufacturing forgings on an automatic hot forging line. Therefore, mathematical models should be designed to control the geometric parameters of the crankshaft forging. Methods Applied. Mathematical methods of approximation of experimental graphs by power functions. Originality. For the first time, a technique has been developed to diagnose the adjustment of metal-forming equipment, correlating the adjustment offsets of metal-forming equipment of the automatic hot forging line and allowance distribution indicators for main and connecting rod journals of crankshaft forgings for heavy trucks. Results. For the first time, the authors developed the mathematical models, correlating the adjustment parameters of metal-forming equipment of the automatic line and allowance distribution parameters for main and connecting rod journals of crankshaft forgings for heavy trucks. Practical Relevance. It lies in providing control of the parameters of the allowance for main and connecting rod journals of forgings, depending on the adjustment parameters and an actual technical condition of the metal-forming equipment of the automatic hot forging line for crankshaft forgings for heavy trucks.

Keywords

crankshaft forging, hot forging, allowance distribution parameters, main and connecting rod journals, adjustment offsets of metal-forming equipment.

For citation

Safarov D.T., Chekh A.V. Identifying Adjustment Offsets of Metal-Forming Equipment to Control Geometrical Accuracy of Crankshaft Forgings for Heavy Trucks. Vestnik Magnitogorskogo Gosudarstvennogo Tekhnicheskogo Universiteta im. G.I. Nosova [Vestnik of Nosov Magnitogorsk State Technical University]. 2022, vol. 20, no. 1, pp. 83–94. https://doi.org/10.18503/1995-2732-2022-20-1-83-94

Damir T. Safarov – PhD (Eng.), Associate Professor, Naberezhnye Chelny Institute (branch) of Kazan (Volga Region) Federal University, Naberezhnye Chelny, Russia. Email: This email address is being protected from spambots. You need JavaScript enabled to view it.. ORCID 0000-0002-8297-4524

Alexander V. Chekh – Director, Forging Plant of PJSC Kama Automobile Plant, Naberezhnye Chelny, Russia. Email: This email address is being protected from spambots. You need JavaScript enabled to view it.

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