Effect of rolling ratio on groove-section profile ring rolling

Zhao, Y. M.; Qian, Dongsheng

doi:10.1007/s12206-010-0525-y

Cited by 25 publications

(6 citation statements)

References 22 publications

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“…These investigations have effectively promoted a deeper recognition to the deformation mechanism of RRR. Based on the investigations of simple rectangle section rings, the deformation conditions, behaviours and laws of some typical profile rings in RRR have been studied basically such as raceway groove section rings (Hua et al, 2008a;Zhao and Qian, 2010), conical section rings (Han et al, 2007), L-section rings (Hua et al, 2009b), T-section rings , etc. Besides, the deformation laws of some special material such as titanium alloy have been explored (Wang et al, 2009;Yang et al, 2008).…”

Section: Theory Developmentmentioning

confidence: 99%

Recent development of ring rolling theory and technique

Hua

Deng

Qian

2017

IJMPT

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Rings are basic mechanical components. Ring rolling is a well-known advanced plastic forming technique to manufacture high-performance seamless rings. Since the 21st century, the fast development of global manufacturing has raised an urgent request to high-performance rings, thus, comprehensive and in-depth studies on ring rolling technique were carried out. Based on long-term investigations and attentions on ring rolling, important developments of ring rolling theory and technique in recent 15 years were simply summarised, including the traditional radial ring rolling and radial-axial ring rolling, as well as the novel combined ring rolling. It is expected to give a valuable reference to the research and application of ring rolling.Keywords: ring rolling; theory; technology; equipment; recent development.Reference to this paper should be made as follows: Hua, L., Deng, J. and Qian, D. (2017)

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Section: Theory Developmentmentioning

confidence: 99%

Recent development of ring rolling theory and technique

Hua

Deng

Qian

2017

IJMPT

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“…Based on the investigations of simple rectangle section rings, the deformation conditions, behaviours and laws of some typical profile rings in RRR have been studied basically such as raceway groove section rings (Hua et al, 2008a;Zhao and Qian, 2010), conical section rings (Han et al, 2007), L-section rings (Hua et al, 2009b), T-section rings (Li et al, 2007;, etc. Besides, the deformation laws of some special material such as titanium alloy have been explored (Wang et al, 2009;Yang et al, 2008).…”

Section: Theory Developmentmentioning

confidence: 99%

Recent development of ring rolling theory and technique

Hua

Deng

Qian

2017

IJMPT

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“…They also introduced the forming principles of CRR. Zhao and Qian 15 investigated the effect of the rolling ratio on the profiled ring's deformation inhomogeneity. They studied the relevance of input parameters, including blank dimensions with rolling ratio, and presented a parametric relationship for selecting an accepted rolling ratio range.…”

Section: Introductionmentioning

confidence: 99%

Investigation of cavity filling in profile ring rolling process for T-shape ring

Zayadi

Parvizi

Farahmand

et al. 2021

Proceedings of the Institution of Mechanical Engineers, Part L:

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In this paper, key parameters affecting the cavity filling in single and double T-shape profile rings are comprehensively investigated via numerical and experimental analysis. A three-dimensional finite element model was developed in Abaqus\Explicit to assess the influence of crucial ring rolling process parameters, including feed speed, main roll rotational velocity, the existence and the absence of axial rolls on the cavity filling of single and T-shape rings and the main roll torque. Besides, a ring rolling machine was built to conduct practical experiments and validate the numerical evaluation, while for the first time, the role of the axial roll and the main roll torque on the quality of the cavity filling is experimentally evaluated. Power requirements and the final ring profile geometry were obtained by the simulation method, and the results were confirmed by the experiments. The results showed that axial rollers significantly reduced the cavity filling rate, and in contrast, the effect of mandrel feed speed and the main roll rotational velocity was much lower. Also, the axial forces were considerably less than the radial forces. However, the rolling operation was done in both radial and axial directions. The existence of axial rolls had an intensive effect on the process’ required power, as a result the main roll torque increased more than three times in case of applying axial rolls, compared with not considering them. Severe effects of axial rollers on increasing force and decreasing cavity filling rate can be attributed to frictional forces between the ring and axial rolls, restricted ring motion, which has to be compensated by a higher torque of the main roll. When the axial rolls are used, the material flow in the ring’s height direction is restricted. Therefore, the material cannot move easily to form the profile. All experimental and simulation results, including mandrel force, cavity filling, and ring profile geometry, were in good agreement, and in all cases, the simulation error was less than 10%.

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Effect of rolling ratio on groove-section profile ring rolling

Cited by 25 publications

References 22 publications

Recent development of ring rolling theory and technique

Recent development of ring rolling theory and technique

Recent development of ring rolling theory and technique

Investigation of cavity filling in profile ring rolling process for T-shape ring

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