Ring blank design and its effect on combined radial and axial ring rolling

Because of the defects of instability and radial shrinking-drawing of outer surface during rolling large-scale non-rectangular sectional ring, based on blank design principles, the method of subsection determining size of blank first, and then find intersection was proposed, which obtained the optimum size rang of large-diameter and non-rectangular sectional ring blank. With specific examples, using the finite element simulation and actual production, the feasibility of the method was verified.

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3D coupled thermo‐mechanical FE modelling and simulation of radial‐axial ring rolling

Materials Research Innovations ◽

10.1179/143307511x12858957673437 ◽

2011 ◽

Vol 15 (sup1) ◽

pp. s221-s224 ◽

Cited By ~ 8

Author(s):

G Zhou ◽

L Hua ◽

J Lan ◽

D S Qian

Keyword(s):

Modelling And Simulation ◽

Ring Rolling ◽

Fe Modelling ◽

Axial Ring

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Key Technologies for 3D-FE Modeling of Radial-Axial Ring Rolling Process

Materials Science Forum ◽

10.4028/www.scientific.net/msf.575-578.367 ◽

2008 ◽

Vol 575-578 ◽

pp. 367-372 ◽

Cited By ~ 5

Author(s):

L.G. Guo ◽

He Yang

Keyword(s):

Modeling And Simulation ◽

Optimum Design ◽

Rolling Process ◽

Ring Rolling ◽

Fe Modeling ◽

Precise Control ◽

Key Technologies ◽

Axial Ring ◽

Forming Characteristics ◽

Ring Rolling Process

Nowadays, 3D-FE Modeling and simulation is an indispensable method for the optimum design and precise control of radial-axial ring rolling process for its complexities. In this paper, the unique forming characteristics of radial-axial ring rolling have first been summarized, and then some key technologies for 3D-FE modeling of the process have been presented and their solution schemes have been given out, lastly the modeling and simulation of radial-axial ring rolling process have been realized using elastic-plastic dynamic explicit procedure under ABAQUS environment. The work provides an important basis and platform for the future investigations, such as forming mechanism and laws, process optimum design and precise control.

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Effect of the Guide-Roll Positional Angle to the Stability of Radial Ring Rolling

Materials Science Forum ◽

10.4028/www.scientific.net/msf.561-565.1875 ◽

2007 ◽

Vol 561-565 ◽

pp. 1875-1878 ◽

Cited By ~ 2

Author(s):

Yong Xing Hao ◽

Lin Hua ◽

Gui Shan Chen ◽

Dao Ming Wang

Keyword(s):

Position Angle ◽

Rolling Process ◽

Ring Rolling ◽

Positional Angle ◽

The Mean ◽

The Stability ◽

Ring Rolling Mill ◽

Ring Rolling Process ◽

Ring Blank ◽

Evaluating Method

Non-stability factors affect stability of radial ring rolling process, and lead to fluctuating of ring position. This decreases rolling precision. Evaluating stability of the process is very important. A stability evaluating method is proposed. The stability can be measured with the mean square root of sequence of oscillation of ring geometrical centerline displacement. Using ABAQUS/Explicit, the stability is analyzed. It is showed that guide-roll position angle has the significant effect to the stability. If guide-roll is located at the tangential position to the ring’s fringe, the stability will vary with the angle between two planes. One passes through axes of guide roll and ring blank, and another passes through axes of drive roll and ring blank. The stability is highest when guide roll is situated at the position angle of 100˚to 130˚at exit side of ring rolling mill.

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