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Published in:
2005 | OriginalPaper | Chapter
Hot Impression Die Forging Process: An Approach to Flash Design for Tool Life Improvement
Authors : R. Di Lorenzo, V. Corona, F. Micari
Published in: AMST’05 Advanced Manufacturing Systems and Technology
Publisher: Springer Vienna
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In impression die forging the role of the flash geometry is fundamental since a proper design of the flash land strongly influences both the complete die filling and the die wear (i.e. the die life and the related costs). In this paper an integrated approach between numerical simulations and statistical tools was developed with the aim to optimize flash thickness in order to reduce die wear and to minimize material wasting. As wear is regarded, an analytical model depending on sliding velocity, temperature, die hardness and contact pressure was utilized during the numerical simulations of the process in order to reach a wear evaluation for different values of the flash design variables. Thus, it was possible to reach a prediction of tool life for different conditions. Furthermore, a cost analysis was carried out in order to investigate the influence of flash design on tool costs and material wasting costs.