Upper bound analysis of torsional backward extrusion process

Journal of Materials Processing Technology

Volumn 143-144, Issue 1, 2003, Pages 735-740

  Kim, Y H ^a   Park, J H ^a  

^a Pusan National University   (South Korea)

Author keywords

Dual stream function; Torsional backward extrusion; Upper bound analysis

Indexed keywords

COMPUTER SIMULATION; DEFORMATION; DIES; EXTRUSION; FINITE ELEMENT METHOD; FORGING; MATHEMATICAL MODELS; PLASTIC FLOW; POWDERS; STRAIN;

DUAL STREAM FUNCTIONS;

MATERIALS SCIENCE;

EID: 0242691990     PISSN: 09240136     EISSN: None     Source Type: Journal    
DOI: 10.1016/S0924-0136(03)00385-6     Document Type: Conference Paper

References (7)

1. Kemin X., Zhen W., Yan L. FEM analysis of cylinder twist-compression deformation regularity. J. Mater. Process. Technol. 69:1997;148-151.
2. Y.H. Kim, J.H. Park, Y.E. Jin, An analysis of plastic deformation processes for twist-assisted upset forging of cylindrical billets, in: Proceedings of the International Conference on Advances in Materials and Processing Technologies (AMPT'99) and 16th Annual Conference of the Irish Manufacturing Committee (IMC16), vol. 1, 1999, pp. 79-86.
3. Y.H. Kim, J.H. Park, Y.E. Jin, An upper bound analysis for torsional upset forging of cylindrical billets, in: Proceedings of the Sixth International Conference on Technology of Plasticity, vol. 2, Advanced Technology of Plasticity, 1999, pp. 859-864.
4. Y.H. Kim, J.H. Park, Y.E. Jin, Y. Lee, An analysis of the torsional forming process using the dual stream function, in: Proceedings of the Eighth International Conference on Metal Forming, Metal Forming 2000, 2000, pp. 741-746.
5. C.S. Yih, Stream Functions in Three-Dimensional Flows, vol. 12, La Houille Blanche, 1957, pp. 445-450.
6. Kim Y.H., Bae W.B., Lee J.H. Prediction of forming load in hot upset forging of Al-7075 using model material technique. J. KSTP. 2:1993;37-50.
7. General Recommendation for Design, Manufacture and Operational Aspects of Cold Extrusion Tools for Steel Components, vol. 6, International Cold Forging Group, Portullis Press, 1983.