Characterisation of a measurement system for reproducible friction testing on sheet metal under plane strain

Sánchez, Luis Rafael

doi:10.1016/s0301-679x(99)00098-5

Cited by 26 publications

(8 citation statements)

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“…On the other hand, other wear tests such as (a) strip pulling [9,10], (b) u-bending/deep drawing [11][12][13], (c) strip drawing [12,14,15], (e) draw bead [16], (f) combined draw-bead and strip pulling [17], and (g) bending under tension or radial strip drawing [12,18] are more representative of the actual stamping conditions; however, they are lengthy (e.g. ∼15-70 km strip length is needed in combined draw-bead and strip pulling test), costly and require With an increasing need to introduce new lightweight materials into the auto body and structures, newer and alternative die materials, coatings, surface treatment/enhancements, and lubricants become necessary to ensure prolonged die life, competitive part cost and consistent high part quality.…”

Section: Introductionmentioning

confidence: 99%

Wear performance assessment of alternative stamping die materials utilizing a novel test system

Cora

Namiki

Koç

2009

Wear

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Section: Introductionmentioning

confidence: 99%

Wear performance assessment of alternative stamping die materials utilizing a novel test system

Cora

Namiki

Koç

2009

Wear

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“…A major drawback in all studies on friction measurement in the draw bead region is that the determination of friction demand repeated measurements of the drawing force using fixed and rotating counter-samples. Such a way of the determination of the value of COF leads to large uncertainties due to scattering [89]. In order to avoid this problem, Olsson et al [90] proposed a new draw bead test that can measure the friction force acting directly on the tool radius using a build-in piezoelectric torque transducer.…”

Section: Friction Testing In the Draw Bead Regionmentioning

confidence: 99%

Recent Developments and Trends in the Friction Testing for Conventional Sheet Metal Forming and Incremental Sheet Forming

Trzepieciński

Lemu

2019

Metals

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Friction is the main phenomenon that has a huge influence on the flow behavior of deformed material in sheet metal forming operations. Sheet metal forming methods are one of the most popular processes of obtaining finished products, especially in aerospace, automobile, and defense industries. Methods of sheet forming are carried out at different temperatures. So, it requires tribological tests that suitably represent the contact phenomena related to the temperature. The knowledge of the friction properties of the sheet is required for the proper design of the conditions of manufacturing processes and tools. This paper summarizes the methods used to describe friction conditions in conventional sheet metal forming and incremental sheet forming that have been developed over a period of time. The following databases have been searched: WebofKowledge, Scopus, Baztool, Bielefield Academic Search Engine, DOAJ Directory of Open Access Journals, eLibrary.ru, FreeFullPdf, GoogleScholar, INGENTA, Polish Scientific Journals Database, ScienceDirect, Springer, WorldCat, WorldWideScience. The English language is selected as the main source of review. However, in a limited scope, databases in Polish and Russian languages are also used. Many methods of friction testing for tribological studies are selected and presented. Some of the methods are observed to have a huge potential in characterizing frictional resistance. The application of these methods and main results have also been provided. Parameters affecting the frictional phenomena and the role of friction have also been explained. The main disadvantages and limitations of the methods of modeling the friction phenomena in specific areas of material to be formed have been discussed. The main findings are as follows—The tribological tests can be classified into direct and indirect measurement tests of the coefficient of friction (COF). In indirect methods of determination, the COF is determined based on measuring other physical quantities. The disadvantage of this type of methods is that they allow the determination of the average COF values, but they do not allow measuring and determining the real friction resistance. In metal forming operations, there exist high local pressures that intensify the effects of adhesion and plowing in the friction resistance. In such conditions, due to the plastic deformation of the material tested, the usage of the formula for the determination of the COF based on the Coulomb friction model is limited. The applicability of the Coulomb friction model to determine the COF is also very limited in the description of contact phenomena in hot SMF due to the high shear of adhesion in total contact resistance.

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“…Concerning the friction coefficient, Figueiredo et al 32 measured the friction coefficient as 0.1–0.15 from draw bead test for aluminum sheet AA 1100. Sanchez et al 30 and Wei et al 31 also measured friction coefficient for sheet metal forming, in which the value is around 0.15. According to these studies, the friction coefficient of 0.15 has been employed in the simulations in this work.…”

Section: Case Studymentioning

confidence: 99%

Thickness control in a new flexible hybrid incremental sheet forming process

Zhang

Lü

Chen

et al. 2017

Proceedings of the Institution of Mechanical Engineers, Part B:

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Characterisation of a measurement system for reproducible friction testing on sheet metal under plane strain

Cited by 26 publications

References 5 publications

Wear performance assessment of alternative stamping die materials utilizing a novel test system

Wear performance assessment of alternative stamping die materials utilizing a novel test system

Recent Developments and Trends in the Friction Testing for Conventional Sheet Metal Forming and Incremental Sheet Forming

Thickness control in a new flexible hybrid incremental sheet forming process

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