A Friction Evaluation Method Based on Barrel Compression Test

Yao, Zhehe; Mei, Deqing; Shen, Hui; Chen, Zichen

doi:10.1007/s11249-013-0164-4

Cited by 41 publications

(20 citation statements)

References 29 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Numerical simulation shows that, possibly, the hardening of the sample has a little effect on the friction coefficient, and therefore on the barreling, such as was observed by Yao et al 16 and Duran et al Figure 12 shows the friction effect over the strain in the sample. The strain has a minimum on the bottom and a maximum in the middle.…”

mentioning

confidence: 69%

See 1 more Smart Citation

Numerical and Experimental Studies of Compression-Tested Copper: Proposal for a New Friction Correction

Torrente

2018

Mat. Res.

View full text Add to dashboard Cite

New empirical relationship is proposed to calculate instantaneous maximum diameters on the sample during compression test. The proposal is a relationship between instantaneous maximum diameter, friction coefficient, initial dimensions of the sample and the displacement during the compression test. Seventeen compression tests were carried out to copper cylindrical samples without lubrication at room temperature to obtain this new empirical relationship. Numerical simulations were carried out taking into a count this new relationship for numerical validation. The maximum diameters calculated with this new empirical relationship are the same to the experimental measurements. The mechanical behavior calculated with this new relationship and with the friction corrections of Rowe and Dieter are similar. The simulations are similar to the experiments, with differences lower than 4.21%. The simulation shows higher hardening in the middle of the sample than on the bottom. Numerical simulations show that, possibly, the friction coefficient between sample and dies changes meanwhile the sample is hardening.

show abstract

mentioning

confidence: 69%

“…Yao et al 16 and Duran et al 17 found a relationship between the barreling, the friction and the slenderness ratio. They said that, possibly, the hardening exponent of the work material has a little effect over the barreling.…”

mentioning

confidence: 98%

Numerical and Experimental Studies of Compression-Tested Copper: Proposal for a New Friction Correction

Torrente

2018

Mat. Res.

View full text Add to dashboard Cite

show abstract

“…Up to now, large numbers of investigations have been carried out in sheet [4][5][6][7][8] and bulk [9][10][11][12][13][14][15][16] metal forming to evaluate interfacial friction and material deformed behavior. Wang et al have developed a plane-strain compression tribometer to measure friction and material ow-stress 2) .…”

Section: Introductionmentioning

confidence: 99%

Investigation of Interfacial Friction and Inverse Flowing Behavior under the Adhesive State

2016

Mater. Trans.

View full text Add to dashboard Cite

This paper has been retracted by the Editorial Committee of Mater. Trans. due to substantial overlap with the following paper previously published in another journal.Int J Adv Manuf Technol (2015) 79:255-263 Evaluation of rheological behavior and interfacial friction under the adhesive condition by upsetting method W.Q. Li Q.X. Ma (Received April 14, 2014; Accepted January 14, 2015; Published February 3, 2015) And thus, it shall not be regarded as an original paper.Materials Transactions, Vol. 58, No. 7 (2017) For improving the precision of numerical simulations in metal forming, it is critical to accurately evaluate the interfacial friction between die/specimen and material deformed behavior. However, there is a huge challenge to assess interfacial friction and material deformed behavior due to the complex mechanisms of tribology at the interfaces. In this study, a program of experimental work directed by ring upsetting has been carried out to evaluate interfacial friction and material deformed behavior on account of the speci c adhesive friction state. The behavior of adhesive friction was qualitatively identi ed with characterized phenomenon and quantitatively identi ed with friction coef cient, which was obtained by taking advantage of Boltzmann distribution characteristics between the radial velocity eld and the relative displacements relevant to metal particles on the meridian plane. Furthermore, simple mathematics methods were applied to analyze inverse owing behavior under the condition of adhesive friction based on the transients displacement achieved by ring upsetting. And the driven mechanism of inverse owing behavior was also revealed systematically. Finally, a new theory of bi-directionality theory was proposed to illustrate inverse owing behavior, and the sustainability of adhesive friction was synthetically analyzed.

show abstract

“…19,21 However, physical and mathematical simplifications were made to develop the empirical equations, so the analytical solution has some limitations in large strain or high friction situations. 23 Meanwhile, finite element analysis has been adopted as an effective approach to predict the forming process and evaluate the friction behavior. 23 Meanwhile, finite element analysis has been adopted as an effective approach to predict the forming process and evaluate the friction behavior.…”

Section: Introductionmentioning

confidence: 99%

Investigation on the friction coefficient between graphene-coated silicon and glass using barrel compression test

Zhou

et al. 2015

Journal of Vacuum Science &Amp; Technology B, Nanotechnology and Microelectronics: Materials, Processing, Measurement, and Phen

View full text Add to dashboard Cite

Articles you may be interested inResidual stress modeling of density modulated silicon thin films using finite element analysis J. Vac. Sci. Technol. A 33, 021503 (2015); 10.1116/1.4902953Thermo-mechanical characterization of glass at high temperature using the cylinder compression test. Part I: Viscoelasticity, friction, and PPV Graphene-coating on silicon wafer can prevent adhesion between silicon and glass in precision glass compression molding. The main goal of this research is to evaluate the graphene/glass interface friction coefficient, which dictates the flow behavior of glass and the durability of the silicon mold. In this research, barrel compression tests using BK7 glass were conducted at different molding temperatures. The purpose of the tests was to obtain the glass cylinder's axial displacement history and the final dimensions after pressing, both of which were decided by the friction coefficient. First, the friction coefficients were estimated by the empirical equations. Then, finite element analysis was implemented to simulate the friction behavior in the pressing stage. The roles of friction coefficient, molding temperature, and applied force were discussed separately. By comparing the experimental and numerical simulation results, both the axial displacement history plots and friction calibration curves show that the best matching friction coefficient is between 0.20 and 0.25 in the temperature range of 660-700 C. Furthermore, the specific friction coefficient values in the same temperature range were calculated using linear interpolation of the friction calibration curves, and showed good agreement with the results from the empirical equation. This study also demonstrated that the friction in the graphene/glass interface has no direct correlation with test temperature. In summary, this study revealed graphene coating's extraordinary low and stable friction behavior at high molding temperatures.

show abstract

A Friction Evaluation Method Based on Barrel Compression Test

Cited by 41 publications

References 29 publications

Numerical and Experimental Studies of Compression-Tested Copper: Proposal for a New Friction Correction

Numerical and Experimental Studies of Compression-Tested Copper: Proposal for a New Friction Correction

Investigation of Interfacial Friction and Inverse Flowing Behavior under the Adhesive State

Investigation on the friction coefficient between graphene-coated silicon and glass using barrel compression test

Contact Info

Product

Resources

About