On the Damage Criteria and their Critical Values for Flowforming of ELI Grade Ti64

Dorian Depriester; Elisabeth Massoni

doi:10.4028/www.scientific.net/KEM.622-623.1221

Paper Titles

Theoretical and Experimental Research on a Method for Producing a Triangular Rosette-Shaped Flange
p.1166

Analysis of the Potential of Incremental Stress Superposition on Air Bending
p.1173

Investigation of Scar Formation in Fine Blanking Processes and their Prediction in 3D ALE Simulations
p.1181

Effect of Process Parameters on Laser Beam Formed Titanium Alloy Sheet
p.1193

Experimental Investigation and Phenomenological Modeling of the Quasi-Static Mechanical Behavior of TA6V Titanium Alloy
p.1200

Experimental Research on Circular Milling of Bi-Layer Composite Materials Consisting of CFRP Laminates and Titanium Alloys
p.1207

Numerical Analysis of Rolling Extrusion Process of a Toothed Shaft from Titanium Alloy Ti6Al4V
p.1215

On the Damage Criteria and their Critical Values for Flowforming of ELI Grade Ti64
p.1221

Orbital Forging of a Ti6Al4V Alloy Jaw Coupling Sleeve
p.1228

HomeKey Engineering MaterialsKey Engineering Materials Vols. 622-623On the Damage Criteria and their Critical Values...

On the Damage Criteria and their Critical Values for Flowforming of ELI Grade Ti64

Abstract:

Cold ﬂowforming is a chipless forming process that deforms tubular parts by reducing theirouter diameter and thickness while increasing their length. It consists of a rotating mandrel and oneor more rollers that are translated along the tube axis, thus plastically deforming it. Flowforming ofTi-6Al-4V (also known as Ti64) is of great interest for improving the mechanical properties of thematerial, such as yield stress and fatigue strength. However this alloy is known to have poor ductilityat room temperature. Therefore, ﬂowforming of Ti64 without failure or crack is a great challenge. Inthis present paper, the authors have attempted to predict the different failure modes occurring duringﬂowforming. An experimental machine has been built at the Center forMaterial Forming (CEMEF) inorder to monitor the force on the single roller, the torque on the mandrel and the actual rotation speedof the roller as well. Numerous ﬂowforming tests have been performed using different processingparameters, such as working depth, roller feed and initial geometry, in order to investigate the criticalvalues which lead to the failure of the ﬂowformed tube. In addition, numerical simulations of theprocess have been performed using the FORGE FEM solver. The results of the simulations have beenused to evaluate the relevance of usual failure criteria (Crockford-Latham, Rice-Tracey and Oyane).

You might also be interested in these eBooks

View Preview

Info:

Periodical:

Key Engineering Materials (Volumes 622-623)

Pages:

1221-1227

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.622-623.1221

Citation:

Cite this paper

Online since:

September 2014

Authors:

Dorian Depriester*, Elisabeth Massoni

Keywords:

Cold Flowforming, Damage Criterion, ELI Grade, Fracture, Processing Parameters, Ti6Al4V

Export:

RIS, BibTeX

Price:

Permissions:

Request Permissions

* - Corresponding Author

References

[1] Chang, S. -C., Huang, C. -A., Yu, S. -Y., Chang, Y., Han, W. -C., Shieh, T. -S., Chung, H. -C., Yao, H. -T., Shyu, G. -D., Hou, H. -Y., Wang, C. -C., and Wang, W. -S. (1998) Journal of Materials Processing Technology 80-81(0), 676-682.

DOI: 10.1016/s0924-0136(98)00174-5

Google Scholar

[2] Davidson, M. J., Balasubramanian, K., and Tagore, G. (2008) Journal of Materials Processing Technology 200(1-3), 283-287.

Google Scholar

[3] Roy, M., Klassen, R., and Wood, J. January 2009 Journal of Materials Processing Technology 209(2), 1018-1025.

Google Scholar

[4] Haghshenas, M., Jhaver, M., Klassen, R., and Wood, J. (2011) Materials & Design 32(6), 3629- -3636.

DOI: 10.1016/j.matdes.2011.02.014

Google Scholar

[5] Gungor, M. N., Kramer, L. S., Ucok, I., Dong, H., and Tack, W. T. (2007) pp.37-45.

Google Scholar

[6] Depriester, D. and Massoni, E. (2013) Key Engineering Materials 554, 157-168.

Google Scholar

[7] Rajan, K. M. and Narasimhan, K. October 2001 Practical Failure Analysis 1(5), 69-76.

Google Scholar

[8] Ko, D. -C. and Kim, B. -M. (2000) Journal of Materials Processing Technology 102(1-3), 19-24.

Google Scholar

[9] Cockcroft, M. and Latham, D. (1968) J Inst Metals 96(1), 33-39.

Google Scholar

[10] Gouveia, B., Rodrigues, J., and Martins, P. (2000) Journal of Materials Processing Technology 101(1-3), 52 - 63.

Google Scholar

[11] Oyane, M. (1972) Bulletin of JSME 15(90), 1507-1513.

Google Scholar

[12] Rice, J. R. and Tracey, D. M. (1969) Journal of the Mechanics and Physics of Solids 17(3), 201- -217.

Google Scholar

[13] Stefanik, A., Dyja, H., and Mróz, S. (2011).

Google Scholar