Design And Manufacturing of a Hydrostatic Extrusion Apparatus for Compound Cylinders from AL And MG

Mohsen J. Joaij; Moneer  H. Tlafeh; Esam T. Abdullah; Abdullah D. Assi

doi:10.24237/djes.2013.06207

Authors

Mohsen J. Joaij 1Engineering College, Nahreen University
Moneer H. Tlafeh Technical College, Baghdad University
Esam T. Abdullah Technical College, Baghdad University
Abdullah D. Assi Technical Instiute, Baghdad

Keywords:

Design, hydrostatic, pressure, analyzed

Abstract

The purpose of this research is to design and construct an experimental hydrostatic extrusion apparatus which has a maximum working pressure of 500 bar, and to reduce the cost of this extrusion apparatus. The high-pressure extrusion container has been designed with hydraulic cylinders which is cheap and readily available. Different materials and designs for high-pressure seals were tested and analyzed for the best combination performance. Problems in the extrusion processes using this device were analyzed and solved, which increased the reliability of the device. The results of extrusion experiments have established that this device is practicable.

Downloads

Download data is not yet available.

References

J. Robertson, Method of and apparatus for forming metal articles, British Patent No. 19 356 (October 14, 1893); US Patent No. 524 504 (August 14, 1894).

P.W. Bridgman, Studies in Large Plastic Flow and Fracture, McGraw-Hill, New York, 1952.

H.Ll.D. Pugh, D. Gunn, in: International Symposium on the Physics and Chemistry of High Pressures, Society of Chemical Industry, London, 1963, pp. 157±159.

H.Ll.D. Pugh, A.H. Low, The hydrostatic extrusion of difficult metals, J. Inst. Met. 93 (1964±1965).

G. Sakai, Z. Horita, T.G. Langdon, Grain refinement and super plasticity in an aluminum alloy processed by high-pressure torsion, Mater. Sci. Eng. A 393(2005)344. DOI: https://doi.org/10.1016/j.msea.2004.11.007

Y.H. Zhao, X.Z. Liao, Y.T. Zhu ,influence of stacking fault energy on nanostructure formation under high pressure torsion, Mater .Sci. Eng. A 410/411(2005)188. DOI: https://doi.org/10.1016/j.msea.2005.08.074

D.B. Witkin , E.J. Lavernia , Synthesis and mechanical behavior of nano structured materials via cryomilled Prog. Mater. Sci. 51(2006) 1. DOI: https://doi.org/10.1016/j.pmatsci.2005.04.004

S. Timoshenko, "Strength of Materials", Part II, Van Nostrand, Princeton, NJ, 1930.

B.Q. Han, E.J. Lavernia , High-temperatuer behavior of a cryomilled ultrafine-grained Al-7.5 % Mg alloy, Mater.Sci.Eng. A 410/411(2005)417. DOI: https://doi.org/10.1016/j.msea.2005.08.046

Y.S. Park, K.H. Chung, Micro structural investigation of nano crystalline bulk Al-Mg alloy fabricated by cryomilling and extrusion, Mater. Sci. Eng. A 374(2004)211. DOI: https://doi.org/10.1016/j.msea.2004.02.013

K. Furuno, H. Akamatsu, T.G. Langdon, Microstructural development in equal-channel angular pressing using a 60[deg] die,Acta Mater. 52(2004)2497. DOI: https://doi.org/10.1016/j.actamat.2004.01.040

pekguleryuz, Mihriban Ozden; et al Magnesium-based casting alloys having improving elevated temperature performance, oxidation-resistant magnesium alloy melts, Magnesium-based alloy castings prepared there from and method for preparing same, US Patent Application 20020104593 August 8,2002.

Metals Handbook ninth Edition Volume-9 metallography and microstructures, 1985,Al in page 352 ,Table-1 ,No.4 &Mg in page 426,Table-1,No.-1.

Lefebvre; Michel (Pierrefonds, CA); Magnesium-based casting alloys having improved elevated temperature properties United States Patent 6,342,180 January 29,2002.

Lehmann, T.: Residual Stress Analysis of Al/Mg Compounds Using the Hole Drilling Method and Strain Gage Rosettes (in German), Reports in Applied Measurements (2010), online published at www.hbm.com.

Kittner, K., Awiszus, B.: Examinations and Simulation of the Interface of an Aluminum- Magnesium Compound. Proc. 9th International Conference on Technology of Plasticity (2008), 258-259.