Summary
The MEL system which offers advantages in improving the design process is described. Our system consists of ten steps. Each step can be used independently of the others. This method enables us to design a new die, and, in addition, changes and corrections of part of an existing die can be done easily. In our system, a product shape is input hierarchically using elements such as points, lines, and circles, closed figures consisting of these elements, patterns consisting of these closed figures, and the product consisting of these patterns. We introduce a concept of the basic pattern which corresponds to the shape of a standard punch. There are several of these. These patterns can be input efficiently using the macro commands for the pattern in the hierarchy, hence input is simple and the programming can be done quickly. The great benifits accrue from these patterns, i.e., the most effective blank and strip layout including information of the tool configuration can be done quickly.
Preview
Unable to display preview. Download preview PDF.
Reference
DMG group technical memo (unpublished)
D. W. DAVY (1971) Computer-aided press tool design, Proc. Roy. Soc. Lond. A. 321 P.157
O. F. SHIFMAN (1973) The PDDC system: A CAD-CAM application to the design and fabrication of press tools, S. M. E. technical paper TE73–107.
J. W. RYON III (1973) Computer processes as supplement to conventional die design method: Some aspects of the PDDC system: S. M. E. technical paper TE73–108
K. TAMURA (1975) Computer-aided design of press tools (in Japanese), J. Japan Soc. Tech. Plasticity, 16 P.207
EXAPT 2 (1974) manual: Geometric definition statements P.5–1
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Copyright information
© 1979 Department of Mechanical Engineering, University of Manchester Institute of Science and Technology
About this chapter
Cite this chapter
Nakahara, S., Kojima, T., Tamura, K., Asuke, F., Soda, C., Nakamura, T. (1979). Computer Aided Progressive Die Design. In: Davies, B.J. (eds) Proceedings of the Nineteenth International Machine Tool Design and Research Conference. Palgrave, London. https://doi.org/10.1007/978-1-349-81412-1_21
Download citation
DOI: https://doi.org/10.1007/978-1-349-81412-1_21
Publisher Name: Palgrave, London
Print ISBN: 978-1-349-81414-5
Online ISBN: 978-1-349-81412-1
eBook Packages: Palgrave Social & Cultural Studies CollectionSocial Sciences (R0)