Experimental techniques to characterize large plastic deformations in unlubricated hot aluminum extrusion

Key Engineering Materials

Volumn 367, Issue , 2008, Pages 17-24

  Valberg, Henry ^a  

^a NORWEGIAN UNIVERSITY OF SCIENCE AND TECHNOLOGY   (Norway)

Author keywords

Deformation; Experimental analysis; Extrusion; Grid pattern technique; Metal flow

Indexed keywords

BILLETS (METAL BARS); COMPUTER SIMULATION; EXTRUSION; PLASTIC DEFORMATION;

ALUMINUM EXTRUSION; EXPERIMENTAL ANALYSIS; GRID PATTERN ANALYSIS; METAL FLOW;

ALUMINUM;

EID: 40949117295     PISSN: 10139826     EISSN: 16629795     Source Type: Book Series    
DOI: 10.4028/0-87849-467-7.17     Document Type: Conference Paper

References (14)

1. H. Valberg, A.W. Hansen, and J.O. Loeland: "Metal Flow at the Die in Aluminium Extrusion", Proc. 3rd Int'l Al. Extr. Techn. Sem., Atlanta, Vol.1, April 22-27 (1984), pp.203-208.
2. H. Valberg: "Physical Simulation of Metal Extrusion by Means of Model Materials", Proc. 4th Int'l Al Extr. Techn. Sem., Chicago, Vol.2, April 11-14 (1988), pp.321-327.
3. G. Grasmo, K. Holthe, S. Stoeren, H. Valberg, R. Flatval, L. Hanssen, M. Lefstad, O. Lohne, T. Welo, R. Oersund and J. Herberg: "Modelling of Two-Dimensional Extrusion", Proc. 5th. Int'l Al. Extr. Techn. Sem., Chicago, Vol.2, May 19-22 (1992), pp.367-376.
4. H. Valberg and R. A. Groenseth: "Metal Flow in Direct, Indirect and Porthole Die Extrusion", Proc. 5th Int. Al. Extr. Techn. Sem., Chicago, Vol.1, May 19-22 (1992), pp.337-357.
5. H. Valberg: "Metal Flow in the Direct Axisymmetric Extrusion of Aluminium", J. Mat. Proc. Techn., Vol.31 (1992), pp.39-55.
6. H. Valberg, A. W. Hansen and R. Kovacs: "Deformation in Hot Extrusion investigated by means of a 3-D Grid Pattern Technique", Proc. 4th. Int. Conf. Techn. Plasticity, Bejing, Vol.I, Sept. 5-12 (1993), pp.637-645.
7. H. Valberg and T. Malvik: "An Experimental Investigation of the Material Flow inside the Bearing Channel in Aluminium Extrusion", Int. J. Mat. Prod. Techn., Vol.9 (1994), 4/5/6, pp.428-463.
8. T. Welo, A. Smaabrekke and H. Valberg: "Two-Dimensional Simulation of Porthole Extrusion", Aluminium, Vol.71 (1995), 1, pp.90-94.
9. H. Valberg and T. Malvik: "Metal Flow in Die Channels of Extrusion", Proc. 6th Int. Al. Extr. Techn. Sem., Chicago, Vol.2, May 14-17 (1996), pp.17-28.
10. H. Valberg, F. P. Coenen and R. Kopp: "Metal Flow in Two-Hole Extrusion", Proc. 6th Int. Al. Extr. Techn. Sem., Chicago, Vol.2, May 14-17 (1996), pp.113-124.
11. H. Valberg and C. Pohl: "Boundary conditions and metal flow in forward extrusion of Al alloys", Conf. proceedings of Euromech 435, Valencienne, June 18-20 (2002), pp. 33-45.
12. H. Valberg and Oe. Sandbakk: "Direct non-lubricated Al-extrusion partitioned into the sub-processes shearing, scratching, radial compression and extrusion", Proc. of the 6th Int. Conf. on Material Forming, Salerno, Italy, April 28-30 (2003), pp. 307-310.
13. H. Valberg and R. K. Uyyuru: "New accurate experimental techniques to quantify metal flow inside workpiece - and along boundary interface of workpiece - in metal forming", Proc. of the 2nd Int. Conf. on Tribology in Manuf. Proc., Nyborg, Denmark, Vol.2, June 15-18 (2004), pp. 453-474.
14. H. Valberg and W. Z. Misiolek: "Plastic deformations in indirect hot extrusion of an aluminium alloy characterised by FEM-analysis with experiment", Proceedings of the 9th Esaform Conf., Glasgow, April 26-38 (2006), pp. 487-490.