Die casting die deflections: Prediction and attenuation. Final report, July 1, 1995--September 30, 1997

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This report summarizes two years of research intended to develop methods to model and predict the deflection patterns in die casting dies. No comprehensive analysis of this type had previously been completed. The die casting process is complex and involves numerous mechanical and thermal phenomena that effect the mechanical behavior of the die. A critical activity in this work was sorting out and evaluating the relative contributions of the various mechanisms to die deflections. This evaluation was accomplished through a series of simple engineering analyses based primarily on the order of magnitude of the influence of each load considered on ... continued below

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168 p.

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Miller, R.A.; Ahuett-Garza, H.; Choudhury, A.K. & Dedhia, S. May 1, 1998.

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This report is part of the collection entitled: Office of Scientific & Technical Information Technical Reports and was provided by UNT Libraries Government Documents Department to Digital Library, a digital repository hosted by the UNT Libraries. It has been viewed 11 times . More information about this report can be viewed below.

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Description

This report summarizes two years of research intended to develop methods to model and predict the deflection patterns in die casting dies. No comprehensive analysis of this type had previously been completed. The die casting process is complex and involves numerous mechanical and thermal phenomena that effect the mechanical behavior of the die. A critical activity in this work was sorting out and evaluating the relative contributions of the various mechanisms to die deflections. This evaluation was accomplished through a series of simple engineering analyses based primarily on the order of magnitude of the influence of each load considered on die deflections. A modeling approach incorporating commercially available finite element analysis software was developed and tested. The model evolved by testing simple models against more comprehensive models and against the limited experimental data that is available. The development of the modeling approach lead to consideration of the die casting machine in more detail than was originally anticipated. The machine is critical and cannot be ignored. A simplified model described as a spring/platen model was developed to account for the machine platens, tie bars, and toggles. The characteristics of this model are described and predictions based on this model are compared against full machine models and measured deflections of machine platens. Details of the modeling approach and the various case studies are provided in the report and in several publications that have resulted from the work.

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168 p.

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OSTI as DE98058495

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  • Other Information: PBD: May 1998

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  • Other: DE98058495
  • Report No.: DOE/ID/13361--T9
  • Grant Number: FC07-95ID13361
  • DOI: 10.2172/307966 | External Link
  • Office of Scientific & Technical Information Report Number: 307966
  • Archival Resource Key: ark:/67531/metadc677456

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Office of Scientific & Technical Information Technical Reports

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  • May 1, 1998

Added to The UNT Digital Library

  • July 25, 2015, 2:20 a.m.

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  • Nov. 15, 2015, 5 p.m.

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Miller, R.A.; Ahuett-Garza, H.; Choudhury, A.K. & Dedhia, S. Die casting die deflections: Prediction and attenuation. Final report, July 1, 1995--September 30, 1997, report, May 1, 1998; United States. (digital.library.unt.edu/ark:/67531/metadc677456/: accessed May 25, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.