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Numerical investigation of the radial cold rolling process of the grooves

Abstract : The radial cold rolling process is widely used in industry due to the advantages of chip removing processing. In this study, circular complex profiles were formed by cold-rolling with radial feed, using a patented device with two roller-tools. By achieving several numerical simulations of the radial rolling process, the study aimed to establish the influence that the maximum set force and the diameter of the workpiece have on the productivity of the process and the quality of the formed trapezoidal and metric grooves. The numerical simulations were performed with ABAQUS/Explicit software and by using a previously validated finite element model. The penetration curve of the roller-tools in the material was introduced in the simulation as an analytical function and was determined based on experimental researches. To express the dependency of the penetration curve coefficients on other rolling conditions, a multivariable analysis using a design of experiments technique was performed. The parameters that result from numerical simulations and were analyzed in this study are the profile forming time, the maximum radial force, the distribution of the equivalent strains in the axial section of the profiles, and the profile dimensions. The conclusions that were drawn from the analysis of the results regarding the influence of the set maximum force and the workpiece diameter on the analyzed parameters of the numerical simulations, together with the definition of efficient process criteria, allowed also the identification of the optimal conditions of the rolling process.
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https://hal-ensta-bretagne.archives-ouvertes.fr/hal-03271427
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Submitted on : Tuesday, June 29, 2021 - 12:07:42 PM
Last modification on : Monday, October 11, 2021 - 2:23:58 PM
Long-term archiving on: : Thursday, September 30, 2021 - 6:32:51 PM

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Eduard Laurentiu Nitu, Daniela Monica Iordache, Claudiu Badulescu. Numerical investigation of the radial cold rolling process of the grooves. Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture, SAGE Publications, In press, pp.095440542110245. ⟨10.1177/09544054211024571⟩. ⟨hal-03271427⟩

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