Three-Dimensional Finite Element Modelling of Forging of a Titanium Alloy Aerofoil Sectioned Blade
Author:
Hu Z. M.1, Brooks J. W.2, Dean T. A.1
Affiliation:
1. IRC for Materials of High Performance, School of Manufacturing and Mechanical Engineering, University of Birmingham, Birmingham B15 2TT, UK 2. DONCASTERS plc, 28–30 Derby Road, Melbourne, Derbyshire, DE73 1FE, UK
Abstract
Analysis of the forging of aerofoil blades, particularly those for aeroengines, is a complex operation because of the complicated three-dimensional geometry and the non steady-state contact between the workpiece and the die surface. In this paper a three-dimensional analysis of the hot forging of a titanium compressor blade, currently being made and used commercially, using the finite element method is presented and validated by the results from hot-die forging tests. The process is modelled assuming isothermal conditions, the main interest being the mechanics of the deformation. Abaqus/Explicit FE software has been used for process simulation in which the complicated die form, assumed rigid, has been modelled using smoothed Bezier surfaces which enable die/workpiece contact phenomena to be handled effectively. Predicted strain patterns in sections of forging, using either 2-D or 3-D analysis are compared. It is shown that the experimental forging load and the overall flow pattern are predicted by the analysis with good accuracy.
Publisher
ASME International
Subject
Industrial and Manufacturing Engineering,Computer Science Applications,Mechanical Engineering,Control and Systems Engineering
Reference14 articles.
1. Akgerman, N., and Altan, T., 1976, “Application of CAD/CAM in Forging Turbine and Compressor Blades,” ASME Journal of Engineering for Power, pp. 290–296. 2. Aksenov
L. B.
, ChitkaraN. R., and JohnsonW., 1975, “Pressure and Deformation in the Plane Strain Pressing of Circular Section Bar to Form Turbine Blades,” Int. J. Mech. Sci., Vol. 17, pp. 681–691. 3. Argyris, J. H., Doltsinis, J. St., and Luginsland, J., 1986, “Three-Dimensional Thermomechanical Analysis of Metal Forming Processes,” Simulation of Metal Forming Processes by the Finite Element Method, Proceedings of the International Workshop, Stuttgart, Spring-Verlag, pp. 125–169. 4. Blackwell, P. L., Brooks, J. W., and Bate, P. S., 1998, “The Development of Microstructure in Isothermal Forged NimonicTM Alloy API,” to be published in Materials Science and Technology, pp. 52–77. 5. Brooks, J. W., 1996, “Processing Wrought Nickel and Titanium Superalloys,” Thermo-Mechanical Processing; Theory, Modelling and Practice, A Conference Organised in Celebration of the 75th Anniversary of the Swedish Society for Materials Technology.
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