Abstract
In this paper, an integrated CAD/CAM/CAE method for the optimum die-surface design of a stream-lined die for straight-sided gear-spline extrusion has been proposed. The die surface is represented by a general surface model. By applying the upper-bound method and the variable metric optimisation scheme, parameters of the die surface, along with those of the velocity field, have been optimised with respect to the minimum extrusion-pressure required. The optimum die-surface was manufactured subsequently, using NC machining to produce the EDM electrode. Extrusion tests for straight-sided gear-splines were then performed, to obtain the extrusion load and the experimental grid-deformation, the theoretical predictions for gear-spline extrusion being found to be in close agreement with the experimental results. Finally, the optimum die-designs for various process conditions are suggested based on the results obtained by the proposed design method.
Original language | English |
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Pages (from-to) | 365-382 |
Number of pages | 18 |
Journal | Journal of Materials Processing Tech. |
Volume | 28 |
Issue number | 3 |
DOIs | |
Publication status | Published - 1991 Dec |
All Science Journal Classification (ASJC) codes
- Ceramics and Composites
- Computer Science Applications
- Metals and Alloys
- Industrial and Manufacturing Engineering