To generate the lack of fusion PRM file, from a command line run
$ prm_gen /t 14-fine-lfus.in /i 25 300 600 /l 1290 1350 /o 2200 2600 3000 /d 0.5 0.5 5 > lfus.out
The options have the following effects:
/t - Switch for thermal analyses.
/i - Switch for interlayer temperatures. This list, in °C, tabulates the interlayer temperatures to be recorded for subsequent part scale analysis.
/l - Switch for lack of fusion temperatures. This list, in °C, is the temperature or temperatures that may lead to lack of fusion.
/o - Switch for hot spot temperatures. This list, in °C, are for temperature thresholds that may result in deleterious effects.
/d - Switch for dimension control. By default the small scale block for thermal analysis is 1 mm × 1 mm and 5 layers high. This switch overrides those defaults. To decrease the computational time, a smaller block is simulated for this example.
After the PRM generation completes, the end of the log file will look as follows:
Thermal PRM input file = 14-fine-lfus Initial temperatures: 25.0000000000000 300.000000000000 600.000000000000 Lack of fusion temperatures: 1290.00000000000 1350.00000000000 Hot spots temperatures: 2200.00000000000 2600.00000000000 3000.00000000000 X size = 0.500000000000000 Y size = 0.500000000000000 Number of layers = 5 Reading input file 14-fine-lfus.in Generating new table file: LFUS.prm Generating threshold fraction data... Running interlayer temperature 25.0000000000000... Running interlayer temperature 300.000000000000... Running interlayer temperature 600.000000000000... Successfully generated prm file LFUS.prm CPU wall = 00:07:15.35
This indicates the LFUS.prm file is now available for use in part-scale thermal analyses. But first generate the hot spot example PRM file using the same options as the lack of fusion parameter:
$ prm_gen /t 14-fine-hotspot.in /i 25 300 600 /l 1290 1350 /o 2200 2600 3000 /d 0.5 0.5 5 > hotspot.out
After the PRM generation completes, the end of the log file will look as follows:
Thermal PRM input file = 14-fine-hotspot Initial temperatures: 25.0000000000000 300.000000000000 600.000000000000 Lack of fusion temperatures: 1290.00000000000 1350.00000000000 Hot spots temperatures: 2200.00000000000 2600.00000000000 3000.00000000000 X size = 0.500000000000000 Y size = 0.500000000000000 Number of layers = 5 Reading input file 14-fine-hotspot.in Generating new table file: hotspot.prm Generating threshold fraction data... Running interlayer temperature 25.0000000000000... Running interlayer temperature 300.000000000000... Running interlayer temperature 600.000000000000... Succesfully generated prm file hotspot.prm CPU wall = 00:11:38.50
Now apply these PRM files to part scale analyses. First run the part scale lack of fusion example from the command line:
$ pan -b 14-lfus
Use type or tail to probe the log file, 14_lfus.out. The end of the log file should look similar to the following:
inc = 35 time = 3352.0313 iter = 1 eps = 0.10573E+03 inc = 35 time = 3352.0313 iter = 2 eps = 0.16919E-12 Finished writing file results\ 14-lfus_35.case Finished writing file results\ 14-lfus_35_c.case Writing record: 2, time: 3352.03125000000 Increment end CPU wall for increment 35 = 00:00:00.15, since start = 00:00:19.02 Layer end Mesh preview volume = 761.062500000000 Activated volume = 761.062500000000 Activated percentage = 100.000000000000 Finished writing file .\ 14-lfus.case Finished writing file .\ 14-lfus_c.case Analysis completed CPU wall for printing = 00:00:04.90 CPU wall = 00:00:19.10 Approximate single thread simulation time = 00:02:47.85 Peak RAM used for this process = 127,204 kB END Autodesk AM Process Simulation
Now run the hotspot example:
$ pan -b 14-hotspot
Use type or tail to probe the log file, 14_hotspot.out. The end of the log file should look similar to the following:
inc = 35 time = 3880.5469 iter = 1 eps = 0.31925E+03 inc = 35 time = 3880.5469 iter = 2 eps = 0.54360E-12 Finished writing file results\ 14-hotspot_35.case Finished writing file results\ 14-hotspot_35_c.case Writing record: 2, time: 3880.54687500000 Increment end CPU wall for increment 35 = 00:00:00.17, since start = 00:00:18.82 Layer end Mesh preview volume = 761.062500000000 Activated volume = 761.062500000000 Activated percentage = 100.000000000000 Finished writing file .\ 14-hotspot.case Finished writing file .\ 14-hotspot_c.case Analysis completed **************************** 1 Warning **************************** CPU wall for printing = 00:00:04.85 CPU wall = 00:00:18.88 Approximate single thread simulation time = 00:02:47.21 Peak RAM used for this process = 125,836 kB END Autodesk AM Process Simulation