Simulation of deformation and temperature in multi-pass continuous rolling by three-dimensional FEM

Yuan, Siyu; Zhang, L.W.; Liao, Shu-lun; Jiang, Guilin; Yu, Yang; Qi, Min

doi:10.1016/j.jmatprotec.2008.06.024

Cited by 20 publications

(4 citation statements)

References 12 publications

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“…Various deterministic methods, such as finite element/difference modelling [6][7][8] and slip-linefields [9] continue to be used in attempt to optimise the process within the deformation zone. These methods alone cannot provide sufficient shift in the optimisation effects; a combination with other "competing" approaches is needed.…”

Section: Problem Descriptionmentioning

confidence: 99%

“…Numerous publications treat aspects of rolling, and a huge database has been accumulated in the industrial systems. Yet even a limited review of literature [1][2][3][4][5][6][7][8][9][10] provides abundant evidence to the need for further optimising the rolling systems in line with the philosophy of continuous improvements, and indeed in line with the current calls for more rational use of global resources.…”

Section: Introductionmentioning

confidence: 99%

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A Knowledge Based Hybrid Model for Improving Manufacturing System in Rolling Mills

Abhary

Garner²,

Kovačić

et al. 2010

KEM

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Hot steel rolling is amongst the most important industrial techniques because of huge amount of consumed resources, immense environmental impact, and the significance and enormous quantity of long products. Criteria for improving rolling operations include process efficiency, resource consumption, system reliability, product quality and ergo-ecological sustainability. There is an increasing availability of information within and beyond the domain of forming by rolling. With advances in computerised information processing, it becomes apparent that further progress is to be sought in intelligently combining the strategies and theories developed in differing disciplines. The key to optimising rolling systems is to be found in hybrid models. This approach calls for utilising cross-disciplinary knowledge, including a selection amongst methods such as stochastic, fuzzy and genetic modelling, process control and optimisation as well as supply chain and maintenance management. Evidence obtained by experiments using small-scale chemo-physical modelling encourages the use laboratory rolling for preliminary validations. Research strategy is conceptualised on the basis of a knowledge-based hybrid model. The sample space for this model is constituted by the rolling passes translated into the form of vectors. An example of a rolling pass translation into the vector form is presented.

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Section: Problem Descriptionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A Knowledge Based Hybrid Model for Improving Manufacturing System in Rolling Mills

Abhary

Garner²,

Kovačić

et al. 2010

KEM

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“…Using the four-pass hot rod rolling experiments with low carbon steel, Said et al [15] reported that 3D modeling is highly necessary to accurately predict the roll force, torque, and temperature of a rod during the shape rolling process. Yuan et al [16] simulated the temperature and deformation of the rod during multi-pass rod rolling by 3D FEM, and the predicted temperature was compared with the measured temperature with a pyrometer. Xue and Liu [17] developed the 2D numerical model for calculating the temperature distribution of the rod during the multi-pass hot rolling process.…”

Section: Introductionmentioning

confidence: 99%

Thermal Behavior of a Rod during Hot Shape Rolling and Its Comparison with a Plate during Flat Rolling

Hwang¹

2020

Processes

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The thermal behavior of a rod during the hot shape rolling process was investigated using the off-line hot rolling simulator and numerical simulation. Additionally, it was compared with a plate during the flat rolling process to understand the thermal behavior of the rod during the hot rolling process in more detail. The temperature of the rod and plate during the hot rolling process was measured at several points with thermocouples using the rolling simulator, and then the measured temperature of each region of a workpiece was analyzed with numerical simulation. During hot rolling process, the temperature distribution of the rod was very different from the plate. The temperature deviation of the rod with area was much higher than that of the plate. The variation in effective stress of the rod along the circumferential direction can induce the temperature difference with area of the rod, whereas the plate had a relatively lower temperature deviation with area due to the uniform effective stress on the surface area. The heat generation by plastic deformation during the forming process also increased the temperature deviation of the rod with area, whereas strain distribution of the plate during flat rolling contributed to the uniformity of temperature of the plate with area. The higher temperature deviation of the rod along the circumferential and radial directions during the shape rolling process can increase the possibility of occurrence in surface defects compared to the plate during flat rolling.

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“…Closed-die forging is a forming technology which places workblank inside a closed die cavity under threeway stress state and extrudes it using punches so that the die cavity is filled with metal to obtain complicated trimming-free flash. However, closed-die forging forming process is complicated with many control parameters so that optimal parameter selection, complicated die design and machining in the closed forging technology of complicated parts become more difficult [5][6][7]. It's hard for traditional forming technology and die design method depending on experience and trial and error to satisfy compli-cated forming conditions and high requirements for precision and quality.…”

Section: Introductionmentioning

confidence: 99%

Closed-die Forging Technology and Numerical Simulation of Aluminum Alloy Connecting Rod

Zhang

2019

Open Physics

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In order to improve quality and reveal the law of precision forging, closed-die forging technology is used in this paper to conduct a numerical analysis of the forming process of aluminum alloy connecting rod by the DEFORM software. Forming effects under different loading modes were acquired, and forming process, blank flow characteristics, stress-strain distribution and load-stroke curve characteristics were analyzed. Study results indicate that the forming effect under the loading mode featuring first movement of lateral punch and then movement of upper and lower punches is good with high quality forge piece and no defect, the closed-die forging technology of aluminum alloy connecting rod is reasonable and feasible. Under a certain deformation velocity and deformation mode, aluminum alloy connecting rod forming load firstly reduces and then increases, the forming load is in direct proportion to deformation velocity. When the forming process is finished, forming load reaches 130T, it accords with the production practice. The study results provide a certain reference for guiding the formulation of closed-die forging production technology of aluminum alloy connecting rods.

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Simulation of deformation and temperature in multi-pass continuous rolling by three-dimensional FEM

Cited by 20 publications

References 12 publications

A Knowledge Based Hybrid Model for Improving Manufacturing System in Rolling Mills

A Knowledge Based Hybrid Model for Improving Manufacturing System in Rolling Mills

Thermal Behavior of a Rod during Hot Shape Rolling and Its Comparison with a Plate during Flat Rolling

Closed-die Forging Technology and Numerical Simulation of Aluminum Alloy Connecting Rod

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