Multi-scale friction modeling for sheet metal forming: The boundary lubrication regime

Hol, J.; Meinders, Vincent T.; Geijselaers, H.J.M.; Boogaard, A.H. van den

doi:10.1016/j.triboint.2014.07.015

Cited by 92 publications

(71 citation statements)

References 40 publications

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“…According to Archard's wear law, the coating would be worn faster under higher normal loads [11]. In addition, since higher 12007-p. 4 …”

Section: Friction Modelling Resultsmentioning

confidence: 99%

“…Kim et al performed ball-on-disk tests to examine the effects of sliding velocity and temperature on friction and wear of a multi-layered DLC coating, and found that the temperature rise led to a decrease in wear rates but an increase in friction coefficient, while the increased sliding velocity could reduce the wear rate and friction coefficient [3]. Hol et al developed a physical based friction model which characterised the friction with surface topography, contact pressure and plastic strain [4,5]. Wilson et al presented a realistic friction model for sheet metal forming [6][7][8][9].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Tool life prediction under multi-cycle loading conditions: A feasibility study

Yuan

Zhou

Politis

et al. 2015

MATEC Web of Conferences

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Abstract. In the present research, the friction and wear behaviour of a hard coating were studied by using ball-on-disc tests to simulate the wear process of the coated tools for sheet metal forming process. The evolution of the friction coefficient followed a typical dualplateau pattern, i.e. at the initial stage of sliding, the friction coefficient was relatively low, followed by a sharp increase due to the breakdown of the coatings after a certain number of cyclic dynamic loadings. This phenomenon was caused by the interactive response between the friction and wear from a coating tribo-system, which has not been addressed so far by metal forming researchers, and constant friction coefficient values are normally used in the FE simulations to represent the complex tribological nature at the contact interfaces. Meanwhile, most of the current FE simulations are single cycle, whereas most sheet metal forming operations are conducted as multi-cycle. Therefore, a novel friction/wear interactive friction model was developed to, simultaneously, characterise the evolutions of friction coefficient and the remaining thickness of the coating layer, to enable the wear life of coated tooling to be predicted. The friction model was then implemented into the FE simulation of a sheet metal forming process for feasibility study.

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“…According to Archard's wear law, the coating would be worn faster under higher normal loads [11]. In addition, since higher 12007-p. 4 …”

Section: Friction Modelling Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Tool life prediction under multi-cycle loading conditions: A feasibility study

Yuan

Zhou

Politis

et al. 2015

MATEC Web of Conferences

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“…Regarding the other analysis conditions, there is no problem under the same conditions as in the analysis of the normal forming process. However, the stress distribution can be set with higher precision by considering the contact surface pressure dependence of the Coulomb friction coefficient [11], the strain rate dependence of the flow stress [12], and the Bauschinger effect.…”

Section: Analysis Model Of the Drawbeadmentioning

confidence: 99%

A novel approach of springback analysis using a drawbead and a die shoulder database in sheet metal forming simulation

Iwata

2017

Int J Adv Manuf Technol

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Springback in sheet metal forming is a deformation that occurs when a workpiece is released from dies after forming. Prediction of springback using the finite element method (FEM) has been used in the design of stamping dies. The present paper describes an effective approach by which to improve the accuracy of springback analysis, which can also suppress the increase in the calculation time. In general, FEM using the analysis condition to decrease discretization errors greatly increases the computation time. The proposed procedure is as follows: (1) Quick analysis using a large mesh size is performed. (2) Data mapping and morphology mapping for the forming results are then performed using the database based on a detailed partial analysis of the drawbead and the die shoulder. (3) Springback analysis is performed using the forming results modified by the data mapping and morphology mapping. A forming experiment was conducted to confirm that the proposed method using the database greatly improves the prediction accuracy of the shape after springback and also suppresses the increase in calculation time.

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“…Extensive work has also been conducted on the stick-slip friction behavior, which resulted in the development of the rate-and state-dependent friction model [13,14]. A very promising approach in friction modeling is based on multi-scale simulations [15][16][17]. However, for industrial applications, these kind of simulations are currently suitable only to a limited extent since they are computationally expensive and restricted to small cutouts.…”

Section: Introductionmentioning

confidence: 99%

Development of a Constitutive Model for Friction in Bulk Metal Forming

et al. 2018

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This paper presents a systematic procedure for the development of a constitutive model of friction with focus on the application in bulk metal forming simulations. The empirically based friction model describes friction as a function of sliding distance and the most relevant friction influencing parameters. The latter were determined by means of designed experiments. An optimal friction model is obtained as a trade-off between model accuracy and complexity by using stepwise nonlinear regression and a modified version of the Akaike information criterion. Within this study, the procedure is applied to determine a friction model for tube drawing. However, the same approach can also be used for modeling friction of any other bulk metal forming process.

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Multi-scale friction modeling for sheet metal forming: The boundary lubrication regime

Cited by 92 publications

References 40 publications

Tool life prediction under multi-cycle loading conditions: A feasibility study

Tool life prediction under multi-cycle loading conditions: A feasibility study

A novel approach of springback analysis using a drawbead and a die shoulder database in sheet metal forming simulation

Development of a Constitutive Model for Friction in Bulk Metal Forming

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