Abstract
Die-set for multi-purpose operations such as bending, trimming and punching, are usually complex in design and expensive. Past work on die design indicates that the misalignment of a die and punch caused by the deformation of the die-set directly influences the life of the die and punch. Consequently anything which enables accurate prediction of the magnitude of relative displacements of the die and punch can be of a great help to press-tool designers.
Earlier studies [1] on tool wear in blanking/punching assume that the normal pressure distribution on the bottom face of the tool is linear while recent work on finite element modelling of a die-set to analyse the die-deformations assumes that the point of location of a die-post (guide pin) on the die-set plate has no effect on the alignment of the die and punch.
The present 3-D finite element model for the die-set takes these contributing factors into account. The results obtained are checked against the practical data on die-set design and experiments. Some suggestions are made to improve radial stiffnesses of the die-set and thus alignment of the die and punch.
Earlier studies [1] on tool wear in blanking/punching assume that the normal pressure distribution on the bottom face of the tool is linear while recent work on finite element modelling of a die-set to analyse the die-deformations assumes that the point of location of a die-post (guide pin) on the die-set plate has no effect on the alignment of the die and punch.
The present 3-D finite element model for the die-set takes these contributing factors into account. The results obtained are checked against the practical data on die-set design and experiments. Some suggestions are made to improve radial stiffnesses of the die-set and thus alignment of the die and punch.
| Original language | English |
|---|---|
| Title of host publication | Proceedings of the Twenty-eighth International Matador Conference |
| Subtitle of host publication | held in Manchester 18th-19th April1990 |
| Editors | B.J. Davies |
| Publisher | Palgrave Macmillan |
| Pages | 379–386 |
| ISBN (Electronic) | 978-1-349-10890-9 |
| ISBN (Print) | 978-1-349-10892-3 |
| DOIs | |
| Publication status | Published - Nov 1990 |
| Event | 28th International Matador Conference 1990 - Manchester, United Kingdom Duration: 18 Apr 1990 → 19 Apr 1990 Conference number: 28 |
Conference
| Conference | 28th International Matador Conference 1990 |
|---|---|
| Country/Territory | United Kingdom |
| City | Manchester |
| Period | 18/04/90 → 19/04/90 |