Modelling of the Mannesmann effect

Ghiotti, Andrea; Fanini, Silvio; Bruschi, Stefania; Bariani, Paolo Francesco

doi:10.1016/j.cirp.2009.03.099

Cited by 73 publications

(51 citation statements)

References 9 publications

(10 reference statements)

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“…For example, Komori and Mizumo [9] used physical modelling (and deformed clay specimens) to determine the effect of the basic parameters on the course of piercing by means of the conical rolls. Ghiotti et al [10] used the Forge software to model the barrel-type rotary piercing process (without the use of the piercing plug) and thus to determine the moment in which material cracking occurs in the product being formed. Pschera et al [11] examined the effect of the feed angle of the rolls on material cracking in the pierced tube shell.…”

Section: Introductionmentioning

confidence: 99%

Complex Numerical Analysis of the Tube Forming Process Using Diescher Mill

Pater¹,

Kazanecki²

2013

Archives of Metallurgy and Materials

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This paper presents the results of FEM simulations of the rotary piercing process in which disc guiding devices of the Diescher type are used. During this process the material is formed by means of two skew rolls, two guiding devices, and the piercing plug mounted on the mandrel. The aim of the analysis was to determine the effect of the plug diameter, the plug advance, the feed angle and the diameter reduction on the piercing process. Nine cases of piercing with three different plugs used were analyzed. The effects of the basic process parameters on the tube shell diameter and the tool load were analyzed. The numerical results obtained using Simufact.Forming 10.0 were verified under experimental conditions in which the tube shell made from 100Cr6 bearing steel was pierced. The results of the FEM calculations show agreement with the experimental results.Keywords: tube piercing, Diescher mill, FEM analysis, experiment W artykule zaprezentowano wyniki symulacji numerycznych procesu dziurowania tulei w walcarce skośnej z prowadnicami tarczowymi Dieschera. W procesie tym materiał jest kształtowany w wyniku oddziaływania dwóch ustawionych skośnie walców, dwóch prowadnic oraz główki dziurującej montowanej na trzpieniu. Celem analizy było określenie wpływu średnicy główki, wysunięcia główki, kąta zukosowania walców oraz gniotu na przebieg procesu dziurowania. Przeanalizowano dziewięć przypadków kształtowania, w których wykorzystano trzy rożne główki dziurujące. Określono wpływ podstawowych parametrów procesu na średnicę tulei kształtowanej oraz obciążenie poszczególnych narzędzi. Wyniki symulacji numerycznej otrzymanej w programie Simufact.Forming 10 zweryfikowano w warunkach doświadczalnych, w których dziurowano tuleje ze stali łożyskowej w gatunku 100Cr6. Rezultaty obliczeń MES pozostawały w dobrej zgodności z wynikami uzyskanymi z doświadczeń.

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Section: Introductionmentioning

confidence: 99%

Complex Numerical Analysis of the Tube Forming Process Using Diescher Mill

Pater¹,

Kazanecki²

2013

Archives of Metallurgy and Materials

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“…The computations were performed with commercial simulation programs such as MSC. SuperForm [15,[21][22][23], Forge [18][19][20], Deform-3D [25]. Other studies were devoted to numerical analysis of elongation processes in helical rolling mills.…”

Section: Application Of Fem For Analysis Of Helical Rolling Processesmentioning

confidence: 99%

“…In addition, the computations were limited either to the steady-state stage of the process or to the beginning of the forming process. Complete numerical models of the piercing process for thick-walled tubes taking into consideration thermal phenomena were constructed by several authors only in the last ten years [17][18][19][20][21][22][23][24][25]. The computations were performed with commercial simulation programs such as MSC.…”

Section: Application Of Fem For Analysis Of Helical Rolling Processesmentioning

confidence: 99%

FEM Analysis of the Multi-Wedge Helical Rolling Process for a Workholding Bolt

Pater

2016

MATEC Web Conf.

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Abstract. This paper presents the results of a numerical analysis of a helical rolling process for producing a 25 mm diameter workholding bolt using multi-wedge helical tools. The numerical modeling was performed by the finite element method (FEM) using the commercial simulation software Simufact.Forming v. 12. The modeling was performed in a three-dimensional state of strain and included a full thermal analysis. As a result, the changes in workpiece shape as well as the distributions of strains, temperature, damage, loads and torque were determined. The numerical results confirm that workholding bolts can be produced by multi-wedge helical rolling.

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“…Young's modulus is 208 000 MPa. The pipes used are made seamless by utilising the Mannesmann effect [16], and are supplied by Tenaris, Argentina.…”

Section: Materials Characterisation Descriptionmentioning

confidence: 99%

Transverse Deformation of Pressurised Pipes With Different Axial Loads

Kristoffersen

Langseth

Ilstad

et al. 2017

Volume 3B: Structures, Safety and Reliability

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Pipelines residing on the seabed are exposed to various hazards, one of them being denting, hooking and release of the pipeline by e.g. anchors or trawl gear. As a pipeline is displaced transversely in a hooking event, an axial tensile load resisting the displacement builds up in the pipeline. This study examines the effect of applying three different axial loads (zero, constant, and linearly increasing) to a pipe while simultaneously deforming it transversely. A fairly sharp indenter conforming to the prevailing design codes was used to deform the pipes. These three tests were repeated with an internal pressure of about 100 bar for comparison. Adding an axial load appeared to increase the pipe's stiffness in terms of the force-displacement curve arising from deforming the pipe transversely. The internal pressure also increased the stiffness, and produced a more local dent in the pipe compared with the unpressurised pipes. All tests were recreated numerically in finite element simulations. Generally, the results of the simulations were in good agreement with the experiments.

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Modelling of the Mannesmann effect

Cited by 73 publications

References 9 publications

Complex Numerical Analysis of the Tube Forming Process Using Diescher Mill

Complex Numerical Analysis of the Tube Forming Process Using Diescher Mill

FEM Analysis of the Multi-Wedge Helical Rolling Process for a Workholding Bolt

Transverse Deformation of Pressurised Pipes With Different Axial Loads

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