Roll gap per rotation optimization in a radial ring rolling process

Allegri, Gabriele; Giorleo, Luca; Ceretti, Elisabetta

doi:10.1063/1.5112542

Cited by 2 publications

(1 citation statement)

References 10 publications

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“…Flattening is a method of adding sufficient force to reduce the height of the original element [5]. Eventually, the punch and dies design creates a gap in the part [7]. The processing of ring rolling is given in Figure 2 3…”

Section: Process Of Ring Rollingmentioning

confidence: 99%

Simulation and Optimization Studies on the Ring Rolling Process Using Steel and Aluminum Alloys

Teja¹,

Kumar²,

Krishna³

et al. 2019

JES

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The current research was carried out using ANSYS to optimize the process parameters for the ring rolling process. In order to optimize the ring rolling process, parameters such as speed, axial roller feed, and driving rollers have been assessed. As a process optimization approach, the optimum values of the parameters and their relationships need to be evaluated. The stress and strain levels were evaluated at various speeds and forces and the critical failure values were determined. The structural steel and aluminum alloys were chosen for this research because they are used as a roller and job part components in the solid wheels for locomotive applications, respectively. The study was conducted by varying the guide roller’s angular velocity from 40 to 45 rad/sec and varying the work piece’s angular velocity from 200 to 250 rad/sec. Additionally, the work part and roller’s fatigue strengths were determined based on the number of cycles before failure. To evaluate the stresses of plastic strain and von failures, the full stress analysis was also performed. Keywords: roller, ANSYS, workpiece, plastic strain, von Misses stress, metal alloy.

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Section: Process Of Ring Rollingmentioning

confidence: 99%

Simulation and Optimization Studies on the Ring Rolling Process Using Steel and Aluminum Alloys

Teja¹,

Kumar²,

Krishna³

et al. 2019

JES

View full text Add to dashboard Cite

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On the Fundamentals of Reverse Ring Rolling: A Numerical Proof of Concept

Pressas,

Papaefthymiou,

Manolakos

2024

Materials

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Ring Rolling is a near-net manufacturing process with some measurable dimensional inaccuracies in its products. This fact is exaggerated even more under the scope of high-precision manufacturing, where these imprecisions render such products unfitting for the strict dimensional requirements of high-precision applications (e.g., bearings, casings for turbojets, etc.). In order to remedy some of the dimensional inaccuracies of Ring Rolling, the novel approach of Reverse Ring Rolling is proposed and investigated in the current analysis. The conducted research was based on a numerical simulation of a flat Ring Rolling process, previously presented by the authors. Since the final dimensions of the ring from the authors’ previous work diverged from those initially expected, the simulation of a subsequent Reverse Ring Rolling process was performed to reach the target dimensions. The calculated deformational results revealed a great agreement in at least two of the three crucial dimensions. Additionally, the evaluation of the calculated stress, strain, temperature and load results revealed key aspects of the mechanisms that occur during the proposed process. Overall, it was concluded that Reverse Ring Rolling can effectively function as a corrective process, which can increase the dimensional accuracy of a seamless ring product with little additional post-processing and cost.

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Roll gap per rotation optimization in a radial ring rolling process

Cited by 2 publications

References 10 publications

Simulation and Optimization Studies on the Ring Rolling Process Using Steel and Aluminum Alloys

Simulation and Optimization Studies on the Ring Rolling Process Using Steel and Aluminum Alloys

On the Fundamentals of Reverse Ring Rolling: A Numerical Proof of Concept

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