Designing of screw impressions in the helical rolling of balls

Tomczak, J.; Pater, Z.; Bulzak, Tomasz

doi:10.1016/j.acme.2013.07.004

Cited by 38 publications

(30 citation statements)

References 4 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Specialist literature also provides some information about the longitudinal rolling of semi-finished products made of non-ferrous metal alloys. For instance, the study [135] reports the numerical results of the rolling process for producing a preform of lever made of magnesium alloy AZ31. The numerical simulations described in the study were performed for two different rolling methods, i.e., longitudinal and cross-wedge rolling.…”

Section: Longitudinal Rollingmentioning

confidence: 99%

Overview of the Research on Roll Forging Processes

Tofil¹,

Pater²

2017

Adv. Sci. Technol. Res. J.

View full text Add to dashboard Cite

The paper overviews the research on roll forging processes in the last two decades. Given the broad scope of this problem, the overview focuses on processes in forging plants, omitting those performed in metallurgical plants. Three rolling processes are discussed in detail: longitudinal rolling, cross rolling and helical rolling. Each of the three techniques is discussed in terms of the main research problems and potential directions of future development.

show abstract

Section: Longitudinal Rollingmentioning

confidence: 99%

Overview of the Research on Roll Forging Processes

Tofil¹,

Pater²

2017

Adv. Sci. Technol. Res. J.

View full text Add to dashboard Cite

show abstract

“…In the case addressed in the paper, tube bending with local induction heating was analysed by application of the finite element method, using version 12 of the Simufact Forming software package from MSC.Software. This software is used for numerical modelling of complex forming processes, and the results obtained by that means display high conformity with the relevant experience [8,[10][11][12].…”

Section: Numerical Modelling Of the Process Of Tube Bending With Locamentioning

confidence: 99%

Selecting Parameters for Bending of Tubes Made of the X70 Steel by Numerical Modelling

Junak

Cieśla

Tomczak

2017

Archives of Metallurgy and Materials

Self Cite

View full text Add to dashboard Cite

This paper addresses numerical analyses of the bending process for tubes made of the X70 steel used in gas distribution pipelines. The calculations performed under the research involved simulation of processes of tube bending with local induction heating. The purpose of these calculations was to establish process parameters making it possible to develop pipe bends of geometric features conforming with requirements of the applicable standards. While performing the calculations, an analysis was conducted to determine the probability of occurrence of folding and fractures according to the Cockcroft-Latham criterion.

show abstract

“…Main CWR methods [1] Due to this fact in the present paper the authors focused on calculations of lighweight hollow part from aluminium alloy 7075 forming by three tools method. More research in this field is described with details in works [5][6][7][8].The CWR method with three tools assures more stable rolling conditions due to three zones contact between workpiece and tools. Hence, the stability of this process can be disturbed by the different phenomena as: triangulation connected with slipping phenomenon presence or internal wall thickness disturbances in billet sections [2,6].…”

Section: Cross Wedge Rolling (Cwr)mentioning

confidence: 99%

Numerical Analysis of the Cross-Wedge Rolling Process by Means of Three Tools of Stepped Shafts From Aluminum Alloy 7075

Bartnicki

Tomczak

Pater

2015

Archives of Metallurgy and Materials

Self Cite

View full text Add to dashboard Cite

This paper presents results of numerical calculations for the rolling process by means of three tools of stepped shafts from aluminum alloy 7075. Forming with the usage of tools with three different wedge spreading angles underwent analysis. In the paper, the obtained distributions of stresses, strains and Cockcroft-Latham damage criterion were given. Moreover, the influence of the wedge spreading angle on shape faults presence in the obtained product was determined. At the same time, the force parameters, which play a crucial role in the designed experiment, were analyzed.Keywords: Cross -wedge rolling, FEM, stepped shafts W artykule przedstawiono wyniki obliczeń numerycznych dla procesu walcowania trzema narzędziami wałków stopniowanych ze stopu aluminium 7075. Analizą objęto kształtowanie za pomocą narzędzi o trzech różnych kątach rozwarcia klina. W pracy podano uzyskane rozkłady naprężeń, odkształceń oraz kryterium pękania wg całki Cockrofta -Lathama. Ponadto, określono wpływ kąta rozwarcia klina na powstawanie błędów kształtu w uzyskiwanym wyrobie. Równolegle przeanalizowano parametry siłowe, których wyznaczenie ma kluczową rolę w projektowanym eksperymencie.

show abstract

Designing of screw impressions in the helical rolling of balls

Cited by 38 publications

References 4 publications

Overview of the Research on Roll Forging Processes

Overview of the Research on Roll Forging Processes

Selecting Parameters for Bending of Tubes Made of the X70 Steel by Numerical Modelling

Numerical Analysis of the Cross-Wedge Rolling Process by Means of Three Tools of Stepped Shafts From Aluminum Alloy 7075

Contact Info

Product

Resources

About