Chemistry: analytical and immunological testing – Condition responsive control
Reexamination Certificate
2005-06-21
2009-11-17
Warden, Jill (Department: 1797)
Chemistry: analytical and immunological testing
Condition responsive control
C164S457000, C164S034000, C164S004100, C700S146000
Reexamination Certificate
active
07618823
ABSTRACT:
Disclosed are a method, system and apparatus for analyzing foam decomposition in contact mode during mold filling in lost foam casting, the foam decomposition having a foam material vapor fraction and the mold filling having a mold filling speed. The method includes providing a plurality of parameter values for casting process parameters as variables of a plurality of predetermined equations, simultaneously solving the plurality of predetermined equations including the parameter values, calculating a vapor value for the fraction of the foam material that decomposes to vapor, an undercut length value designating the amount of coating exposed to gas diffusion, and a speed value for the mold filling speed, and determining whether to adjust at least one of the parameter values based on the results for the vapor value, the undercut length value, or the speed value.
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Barone Martin R.
Caulk David A.
GM Global Technology Operations Inc.
Kilpatrick Bryan T
Reising Ethington P.C.
Warden Jill
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