Simple visualization techniques for die casting part and die design. Final report, July 1, 1995--September 30, 1997 Page: 4 of 220
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The objective of this work was to develop and test die casting design evaluation
techniques based on the visualization of geometric data that is related to potential defects
of problems. Specifically, thickress information is used to provide insight into potential
thermal problems in the part and die. Distance from the gate and a special type of
animation of the fill pattern is used to provide an assessment of gate, vent and overflow
Techniques have been developed to convert part design information in the form of STL
files to a volume-based representation called a'voxel model. The use of STL files makes
the process CAD system independent. Once in voxel form, methods that were developed
in this work are used to identify thick regions in the part, thin regions in the part and/or
die, distance from user specified entry locations (gates), and the qualitative depiction of
the fill pattern. The methods were tested with a prototype implementation on the UNIX
platform. The results of comparisons with numerical simulation and field reported
defects were surprisingly good. The fill-related methods were also compared against
short-shots and a water analog study using high speed video.
The report contains the results of the testing plus detailed background material on the-
construction of voxel models, the methods used for displaying results, and the-
computational geometric reasoning methods- used to create die casting-related
information from the voxel model for display to the user.
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Miller, R.A.; Lu, S.C. & Rebello, A.B. Simple visualization techniques for die casting part and die design. Final report, July 1, 1995--September 30, 1997, report, May 1, 1998; United States. (https://digital.library.unt.edu/ark:/67531/metadc690873/m1/4/: accessed April 22, 2019), University of North Texas Libraries, Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.