DOI: 10.18503/1995-2732-2022-20-4-110-119
Abstract
Now the requirement for the accuracy of manufactured products is rising, leading to an increase in finishing operations. One of the commonly used methods for hardened workpiece surfaces is grinding. Due to intense competition, quality improvement should not influence the cost of products; therefore, technologies aimed at improving efficiency are actively introduced in production. One of such methods is machining cycles. The cycles are often designed by an analytical method factoring into a number of restrictions, for example, in terms of power, rigidity of the technological system, dimensional tolerances, and the absence of temperature defects. A technological feature of the grinding process is its high heat stress, as a result of which the temperature in the machining zone can reach steel melting temperature. This leads to irreversible defects on the surface of the finished part and, consequently, rejected products and production costs. In view of this, it may be concluded that the temperature limit is key in the design of machining cycles. The paper describes testing of a previously developed temperature model of cylindrical plunge grinding. The testing was carried out by comparing the temperature distribution in the workpiece, when simulating the machining process using the finite element modeling method in the Ansys software environment, and the calculation data of the tested model. As a result of such testing, it was found that the error between maximum temperatures in the machining zone did not exceed 7%, allowing us to recognize the developed model as adequate. In addition, in future we intend to conduct a number of experiments to test the operation of the temperature model when designing a machining cycle.
Keywords
grinding temperature, absence of temperature defects, machining cycle, finite element method
For citation
Degtyareva-Kashutina A.S., Boldyrev I.S. Testing a Temperature Model of Cylindrical Plunge Grinding Using the Finite Element Method. Vestnik Magnitogorskogo Gosudarstvennogo Tekhnicheskogo Universiteta im. G.I. Nosova [Vestnik of Nosov Magnitogorsk State Technical University]. 2022, vol. 20, no. 4, pp. 110-119. https://doi.org/10.18503/1995-2732-2022-20-4-110-119
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