Formation mechanism and control methods of inhomogeneous deformation during hot rough rolling of aluminum alloy plate

• Autorzy: Hao P. , He A. , Sun W.

Identyfikatory

DOI

10.1016/j.acme.2017.07.004

• Języki publikacji: EN

Abstrakty

EN

The inhomogeneous deformation which appears in hot rough rolling of aluminum alloy plate, reduces rolling output and negatively affects the rolling process. To study the formation mechanism of the inhomogeneous deformation, a finite element model for the five-pass hot rough rolling process of aluminum alloy plate is built. Results show that inhomogeneous deformation distribution in thickness direction causes two bulges at head and tail ends, as indicated by the analysis of the equivalent plastic strain distribution and deformation. However, formation mechanism of the inhomogeneous deformation at head end differs from that at tail end. Changing the end shape and angular rolling are adopted for decreasing the length and width of the crocodile mouth. It can be found that the crocodile mouth can be improved effectively by increasing the central bump length and the rotation angles through simulation and experiments. Then, the combination effect of two methods is simulated and results show that the combination effect is better than respectively using of each method. In addition, combination of two methods can avoid the restricted conditions for respectively using of each method.

Słowa kluczowe

EN

aluminum alloy; finite element model; crocodile mouth; inhomogeneous deformation; angular rolling

PL

stop aluminium; metoda elementów skończonych; odkształcenie; walcowanie

• Wydawca: Springer ; Wrocław University of Science and Technology
• Czasopismo: Archives of Civil and Mechanical Engineering
• Rocznik: 2018
• Tom: Vol. 18, no. 1
• Strony: 245--255
• Opis fizyczny: Bibliogr. 25 poz., rys., tab., wykr.

Twórcy

autor

Hao P.

• National Engineering Research Center of Advanced Rolling, University of Science and Technology Beijing, Beijing 100083, China

autor

He A.

• National Engineering Research Center of Advanced Rolling, University of Science and Technology Beijing, Beijing 100083, China

autor

Sun W.

• National Engineering Research Center of Advanced Rolling, University of Science and Technology Beijing, Beijing 100083, China

Bibliografia

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Uwagi

PL

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2018)