Determination of the energy and power parameters during groove-rolling

• Autorzy: Mróz S. , Jagieła K. , Dyja H.
• Języki publikacji: EN

Abstrakty

EN

Purpose: In order to correctly design the process of bar rolling in grooves it is required that several limitations affecting the rolling process be considered. When developing a technology, energy and force parameters among others, are needed to be taken into account. Therefore, it is purposeful to examine variations in the energy and force parameters during the rolling of bars. Design/methodology/approach: Using FEM-based computer programs for solving the problems of the theory of plasticity enables determining the energy and force parameters in complex plastic working processes and also accounting for a number of process specificities, which are not provided for by the empirical formula. Findings: The theoretical values of the rolling torque and power during the rolling of band in the grooves, as determined using the Forge3(R) software and the engineering method proposed by Chekmarev, were compared with the experimental values obtained from the measurements of current loads in a plant manufacturing bars. The current loads of the main drive of the continuous rolling mill for rolling bars were measured in one of the Polish steelworks. Practical implications: Change in the band temperature over its length influences the variations in the magnitudes of widening and advance. Its variations lead to a change in energy-force parameters. Originality/value: Using the FE programs for the computation of the values of the energy-force parameters can take into account the distribution of temperature over the band length.

Słowa kluczowe

EN

numerical techniques; FEM; finite element method; groove-rolling; energy parameters; power parameters

PL

techniki numeryczne; MES (metoda elementów skończonych); metoda elementów skończonych; walcowanie; obróbka plastyczna; parametry energetyczne; parametry siłowe

• Wydawca: International OCSCO World Press
• Czasopismo: Journal of Achievements in Materials and Manufacturing Engineering
• Rocznik: 2007
• Tom: Vol. 22, nr 2
• Strony: 59--62
• Opis fizyczny: Bibliogr. 16 poz., rys.

Twórcy

autor

Mróz S.

autor

Jagieła K.

autor

Dyja H.

• Institute of Modeling and Automation of Plastic Working Processes, Częstochowa University of Technology, ul. Armii Krajowej 19, 42-200 Częstochowa, Poland,

Bibliografia

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