Determination of Friction Coefficient by Employing the Ring Compression Test

Sofuoğlu, Hasan; Gedikli, Hasan; Rasty, Jahan

doi:10.1115/1.1369601

Cited by 51 publications

(14 citation statements)

References 8 publications

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“…Moreover, to recognize the influence of friction, smooth and rough anvils were used. The contact friction coefficient was calculated according to [27], through the ring compression tests which were carried out at room temperature. The friction coefficient by a shear model was calculated at 0.18, 0.35 for smooth and rough anvils, respectively.…”

Section: Experimental Materials and Methodsmentioning

confidence: 99%

Determination of ductile fracture criteria for bulk and PM materials

KVACKAJ¹,

TIŽA²,

KOVÁČOVÁ³

et al. 2016

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In the paper, calculation of the ductile fracture criteria for experimental materials as HSLA (high strength low alloy) steel, aluminium alloy EN AW 6082 T6 and powder metallurgy material ALUMIX 321 was carried out. Using ring and compression tests, it was possible to determine friction coefficient, stress-strain curves, constants for the Hollomon's equation, material workability and nCL (normalized Cockcroft-Latham) criteria. Moreover, the results from the nCL criteria calculations obtained from compression tests and numerical simulations were compared and verified. Numerical simulations were done by the Deform 3D software. It was confirmed that both methods provide similar results.

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Section: Experimental Materials and Methodsmentioning

confidence: 99%

Determination of ductile fracture criteria for bulk and PM materials

KVACKAJ¹,

TIŽA²,

KOVÁČOVÁ³

et al. 2016

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“…Male and Sofuoglu [8,9] developed this method which is well-accepted today to predict the friction coefficient in most metal forming processes at elevated temperature. In 2008, Ananthasayanam [10] used this method to determine the friction coefficient between L-BAL35 glass and a tungsten carbide DLC (Diamond-like-carbon) coated mold.…”

Section: Introductionmentioning

confidence: 99%

Friction measurement in precision glass molding: An experimental study

Mosaddegh

Ziegert

2011

Journal of Non-Crystalline Solids

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“…Moreover, to verify the influence of friction, anvils with different roughnesses were used. The contact friction was determined through ring compression tests (at room temperature) and calculated according to the [22]. By the shear model, there was recognized friction of 0.18, 0.35 for smooth and rough anvil surfaces, respectively.…”

Section: Experimental Materials and Methodsmentioning

confidence: 99%

Physical and Numerical Determination of Workability in Aluminium Alloys

Kováčová¹,

Kvačkaj²,

Kočiško³

et al. 2014

Acta Metall Slovaca

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To prevent any failure or fracture in materials during a forming process, the study of material workability is a crucial task. In this paper, the workability of two different aluminium alloys was described through Cockcroft -Latham ductile fracture criteria and forming limit diagrams. Moreover, the experiments have been carried out using compression tests and finite element methods and there was able to compare and verify the physical and numerical approaches. According to the results, there was found out that physical and numerical models are advantageous tools to describe the material workability during forming processes and the optimal data are obtained when both approaches are working together.

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Determination of Friction Coefficient by Employing the Ring Compression Test

Cited by 51 publications

References 8 publications

Determination of ductile fracture criteria for bulk and PM materials

Determination of ductile fracture criteria for bulk and PM materials

Friction measurement in precision glass molding: An experimental study

Physical and Numerical Determination of Workability in Aluminium Alloys

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