How to use cooling as input to the flow analysis?
Can somebody give answer for given questions: How to use cooling as input to the flow analysis? Why filling should not be used as a input to the cool analysis?
2) Filling is an output of the Fill analysis, therefore it can't be used as an input to any other analysis...
i don't fully understood the nature of your questions, but i hope i gave you a clearer idea on how to use the software.
If I understand what you are asking, with cooling you are just testing the heat removal effectivness of the proposed cooling system within the tool. Cooling should highlight any areas with poor heat removal this can be modified/corrected, the filling time is not used because the part weight dictates how much heat energy removal (Heat Conent in Joules/per gram) is required.
Hope this helps
Firstly, to use cooling analysis results as an input to Fill+Pack you must select the correct order of analyses. i.e. Cool+Fill+Pack. Obviously you need to model the cooling channels with beam elements.
Alternatively, you can also use the following sequence, Fill+Pack+Cool+Fill+Pack. But this is time consuming and perhaps offers little advantage compared to the resources needed.
The reason we use cooling analysis results as in input to the Fill+Pack is that we get a more realistic mold temperature distribution and thus the polymer flow can take the actual temps into account rather and using a constant mold temp. This lead to futher advantages in freeze time and part temperature calculations
Hope i answered your question
it will get you closer, the best thing to do is, have the mold drawing, mold material, known inserts material, and most of all, ask the question "why do you think you need a cooling analysis" also review your results carefully even as another moldflow user for inputs. Hope this helps,
I agree with what other users have answered you already. Here are my two cents:
1)How to use cooling as input to the flow analysis?
By using the analysis sequence Cool+ Fill+Pack will be the only way Cooling output will be the input or the Flow analysis. I will agree with Craig, you do need to know what are you expecting to answer from the analysis before this is done. If you are to run such analysis enter as much information you have available to leave the least amount of assumptions pending.
2) Why filling should not be used as a input to the cool analysis?
As a software program you need to make an assumption to run an analysis. In most cases, it is recommended to run first Cooling than Filling as the start of the sequence. The debate stands that Cooling assumes that the part is at melt temperature while Filling assumes the mold is uniform at the set mold temperature. Many case studies indicate that the Cooling analysis assumption is the best and will lead to more accurate results, in the event you do not have the time to run the complete multiple analysis Fill+Pack+Cool+Fill+Pack.