Simulation Forums

Find Simulation answers, share expertise, and connect with your peers

Simulation Moldflow IdeaStation

1
Vote

How much Draft is needed to not get scratch marks?
Is it 3, 5 or 7 degrees ??

Of course, they depend on how surface is etched, you have VDI 30 or finer, but how should you simulate it?

 

 

Erik Andreen Mold Flow specialist

Dept: Exterior

Phone: +46 702 27 89 20

E-mail: erik.andreen@cevt.se China Euro Vehicle Technology AB

Theres Svenssons Gata 7 SE-417 55 Göteborg Sweden

www.cevt.se

 


1
Vote

option to create symmetrical mesh model 

 

We have always faced the problem of non-symmetric mesh and same resulted in Non-symmetric results of of symmetric part

 

To overcome this problem,

 

Usually we do cut the cad model on symmetric plane & do meshing of half part. 

Then  reflect-copy and merge to get mesh of full part. i.e mesh also be will symmetric.

 

Now you add the same as a option in "Advanced' as shown in below image

mirror.png

 

 

 

 


1
Vote

Why is the Moldflow Communicator always been such a resource killer?


Even on powerfull workstations, the animations, f.e. the cooling time, for larger models (~7 million elements) doesn't run smoothly, the animations stops very often.

Users, without powerfull workstations, don't have a chance to get a reasonable view of the Moldflow animations and a HTML report isn't an option for the future.

 

Question to the development team: Can not the Moldflow Communicator be programmed so that it doesn't need as much resources of the computer?

 

Regards

 

Michael


0
Vote

I have a project folder where I have all the tumbnails of active projects which point mostly to network drives.

 

When creating a project, only folders can be seen, not thumbnails. This is very annoying as I have to go through a lot of network folders to get where I want to create a new simulation.

 

The file explorer is again different when importing a new geometry.

 

It would be a lot better to 

 

1) Have the same file explorer for both project creation and geometry import(s),

2) Make thumbnails visible,

3) Maybe use the standard windows file explorer where you have your favorite (most frequently used) folders / thumbnails on the side 

 

Thanks


3
Vote

Hello Moldflow Team.

 

There are several posts for the topic VENTING.

I think it is time to re-design the complete venting analysis.

 

1. In moldflow, it is a lot of work to create a venting along a split line.

    In other simulation programs, it is much easear to implement venting areas. There you can select a edge on 3D body or a group of nodes.

 

   So you do not have select each node / node by node.

 

2. put more informations in log file.

for example:

- venting pressure each time step

- for the warning message *306128* (air speed in the vent .... super sonic...) please include the node number in log file for the venting location this happens.

- if there is an increasing of the melt temperature in cause of high venting pressure, please include also the element number to locate the hot spot.

- Diesel effect ( https://forums.autodesk.com/t5/moldflow-ideas/new-result-plot-quot-diesel-effect-quot/idi-p/7002567)

.......

 

If somebody else have other ideas to the topic VENTING please post your comment!

 

Thanks to all

 

Regards

Lothar


4
Vote

The issue is that are no proposals from moldflow to get the best injection point after a insert-part-displacement-calculation.

It might be helpful to know, where is an alternative gate to reduce the insert-displacement nearly till zero.

 

If there any questions feel free to contact me.

 

br René


0
Vote

use on a network drive

by csegard on 07/03/2017 3:02 PM

hello,

 

it could save time for IT guys to have only a network drive to install on and to not have to install with microsoft components present locally.

The idea would be to have the software present on a network drive and to be allowed to use it directly.

 

Best regards

 

Cédric


5
Vote

moldflow insight ultimate 'subscription licence' also provide access to Helius PFA but not for 'maintenance licence'

moldflow insight ultimate 'maintenance licence' must provided access to 'Helius PFA ' for being loyal to Autodesk Moldflow

 


2
Vote

-


1
Vote

Hi,

 

It would be nice that if we have option to export the optimized process settings from Old study to New study (Updated mesh or study) with the project.

 

Many times we manually entering it for each new iterations we performing with the new meshed parts due to some product design changes within a single project.

 

 


12
Vote

I appreciate Autodesk for improvising the selection tools like nodes/triangles on a planar/same edge/same surface. This was really a good move which saved a lot of time in selecting the features.

 

Now I need something extra.

Following are two different ways I did the node selection for the same path plot.

 

Path plot node selection.JPG

 

Method A: More a kind of automatic, Easy, Less time required, may lead to misinterpretations, X axis not very realistic compared to the circumference.

Method B: good visualization, realistic, X axis value is close to the circumference or the actual length of the features, but more time consuming.

 

what I need: 

 

1. I will isolate the nodes on the desired path plot to a different layer. ( picture attached - node isolation)

2. I will select the starting point  (and may be next 3-4 continuous nodes)

3. Moldflow should have a tool to select all other nodes in such a way that the path line will continue in a realistic way.

    (may be an algorithm should run, like the next node to be selected should be the nearest node to the current selected node "within the active visible layer". when you isolate the nodes to a new layer, this way of selection won't be that difficult).

 

Thus we will get a result like Method B within seconds.

 

-PK

4
Vote

I know that there are several options to manage the scale while viewing the result but my requirement is different. I would like to adjust the Y axis near to the number which I enter, mostly  by keeping a median value (red line in the pic attached) in the graph as zero.

 

You will understand my requirements better after seeing the attached Picture.

 

Path plot- scale.JPG

 

In the pic the original scale values of Y-axis (of deflection) is from -1.025 to + 0.775 . Most of the times when I share this result with other teams or with the supplier they will misinterpret with the higher values here. But the actual deviation (flatness/roundness etc)here is just 0.25 mm.

 

So I would like to customize the scale like what I have given in left end with red colour.

Here, a simple step is done. adjusted the scale by -0.925.

 

By seeing this scale, the designer, project managers, suppliers etc. are more relaxed..!!

 

(No one want to do a lot of mathematical calculations to come to a conclusion. So let us provide them straight away..!! )

 

Does this make any sense??


4
Vote

Every time we copy the feed system we have to delete the entities from original place. . It will be time saving if we have an option Copy & Delete Original entities to increase workflow efficiency.

5
Vote

Moldflow allows us to export full model. It will be time saving if we have an option to import particular layer entities from particular study file to increase workflow efficiency. So that feed system, cooling system can be imported back to another studies or projects. This tool can provide time saving that can add up quickly. 


0
Vote

Moldflow allows us to export full model. It will be time saving if we have an option to export particular layer entities alone.


0
Vote

Option are Re-arranged in every new versions released,. It will decrease our workflow efficiency.

 

Please Don’t re-arrange the options in upcoming Moldflow release.


0
Vote

The menu option Edit->Select by->Properties menu allows us to select entities sorted by properties. This tool can provide time saving that can add up quickly.  The menu can be seen in figure 1 below.

 

 

Like this We want to easily select specific groups of Associated Nodes only to increase workflow efficiency. The menu can be seen in figure 2 below.

 

 

 

 

11
Vote

After performing an overmolding analysis in Moldflow, you have overlayed the fill time results of the first and second shot (overmolding) components. You are then able to select one of these results to activate.  Next, when animating through the fill result, the Active component is the one that cycles through the fill animation. It would be advantageous if there was the option to play through the fill animation of both components so that once the first shot/component fills, the second shot/component then fills sequentially all in the same animation.

 

The attached .mp4 file demonstrates what I would like to see as an option in Moldflow using Snagit video and some minor editing.

 

Thank you for taking this into consideration!  

2
Vote

Current situation:

 

ejector pins, venting pins, slider gaps and cavity boarders provide the necessary venting at a common injection molding process.

Those venting techniques provide a small, often long gap where air can escape. To create such a gap it is necessary to select node by node within one venting group. Therefore long gaps need a lot of clicks to create a similar venting situation.

 

venting points.JPG

 

Proposal:

 

Add the option to select a line of nodes by path.


2
Vote

Hello Moldflow Team.

 

Is there any option to change the Font Size of the study notes and plot notes?

if not, can you please implement it in moldflow? May be by right button mouse click? Or in settings?

Thank you for consideration.

 

BR

Lothar


1
Vote

Hello Moldflow Team

 

Is it possible to creat a new type of BEAM for the unheated area of a hot runner tip?

 

Solution can be:

1. a filled beam with cold runner characteristics

2. a special beam- segment for the unheated area of a  hot runner tip

 

Advantages:

1. better predicton for gate freezing

2. better melting core analysis

3. lower influence to the result "time to reach ejection temp" than a hot gate beam element

 

Thanks

BR

Lothar

 


1
Vote

It would be nice to have a better selection of tools for measuring models within Moldflow Advisor.  For example the ability to measure angles so that a part can be orientated more easily.

 

Also, on the design advisor analysis, a secondary display of draft angles so that you can easily see how a splitline would appear.  This would simply need to be 3 colours, say red fo rone half, green for the other and blue for zero draft surfaces.  This would be very useful when moldflow is used for DFM work on customer parts as it would display a very easy to see representation of a core/cavity split.  Would imagine this to be very easy to implement and a highly useful 4th option in design advisor!  Would like to see this in inventor too.


2
Vote

Hello Moldflow Team


You implemented in MF2016 the Feature, to view the log file from Job Manager without opening the project.
why doesn't this work in MF2017?
or do I something wrong?

 

Please comment and if possible implement it again!

 

Thanks

BR

Lothar


1
Vote

Improvement job manager to run jobs on HPC and select the nodes. At this moment Autodesk support Insight on linux but it is supported only on master but not for slaves.


5
Vote

Raised on behalf of Ranjan Rout in Inida user meeting (2017.6.2)

 

Steps:

1/ Select some tetras/triangles (or use selection by face)

2/ RMC or have button to hide them

 

 Benefit:

1/ it save time and easy for you to show hide elements (at the moment we can only do it by show/hide layer, you need to remember the layers)


2
Vote

Hello,

 

It would useful to have the possibility to switch off the alert message about 3D Connexion device when starting Moldflow 2018.

It is useful if you have one of this device.

If not, the message is unuseless and avoid the fast opening of the interface.

 

Best regards

 

Cédric


6
Vote

For polymeric materials containing a micro-scale filler with an aspect ratio greater than 1 (i.e. a typical short or long discontinuous fiber), the AMI solver calculates the mechanical properties and thermal expansion coefficients (E11, E22, G12, G23, ν12, ν23, α1, and α2) of an idealized, perfectly-aligned discontinuous fiber composite material using a (selectable) micromechanics model (such as Mori-Tanaka) and a (selectable) model for thermal expansion (such as Rosen-Hashin). Currently, the properties of the matrix* and the fiber(s) present in the composite material are listed in the analysis log; however, the solver-calculated properties of the idealized fiber-reinforced composite material are currently NOT reported in analysis log files. These solver-calculated idealized composite material values should also be reported within the analysis log in addition to those of the matrix and the fiber(s).

 

Like the analysis log-reported defined (or calculated via decomposition) intermediate result of matrix properties and the defined properties of the fiber(s) (also displayed in the analysis log file), knowing what properties are used for the idealized discontinuous fiber-reinforced composite material generated from these constituents is important in the “warpage” analysis process as it is the basis for calculating and understanding the non-idealized properties reviewable by a user. If the idealized composite is in error, further calculated results are meaningless. The ability to easily review the properties of the idealized composite in the analysis log would serve as an up-front “sanity check” before significant computational effort may be expended on a deflection analysis trial(s). Additionally, having all (fiber(s), matrix, and composite) of these intermediate results accurately recorded and easily retrievable in a simulation trial’s analysis log file is important when iterative simulation trials using material variants are conducted.

 

*While anisotropic matrix properties can be entered, analysis log files seem to only report isotropic matrix properties regardless of source data or the micromechanics model selected. For example, the first image below is a portion of an analysis log file (release 2017.3) for a short glass fiber-filled polypropylene material where “Use 7 matrix properties” was selected. Matrix properties were anisotropic (first image below); however, the analysis log file for this analysis trial seems to have recorded matrix properties as isotropic (E, ν, α1) using 1st principal direction properties (second image below). Note: Mori-Tanaka and Rosen-Hashin were selected for composite property modeling as is also shown below (third image).

 

matrix properties.png

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

iso properties.png

 

 

 

 

 

 

 

 

 

settings.png

 

 

 

 

 

 

 

 

 

 

Autodesk has recognized this as a bug for a future release correction. Autodesk comment below:

 

“The analysis output is incomplete when anisotropic matrix properties are used. We'll log this bug and fix it soon.”


3
Vote

Hallo community,

 

sometimes I get communicator files for a quick review. And I miss some small functions I use in insight all the time. It would be awesome if you could implemented these functions in the upcoming versions. 

 

1. the option to switch the colors from smooth to banded.

2. changing the entities, for example from solid to transparant + element edges.

3. the function to specified the scaling

 

By the way, is it possible to release a mac version for the Communicator?

 

I hope I will see the functions in the upcoming version.

 

Thank you very much!

 

Best regards

 

Alexander


5
Vote

Current Situation:

In case of a simulation failure the Moldflow Job Manager moves the job from "active" to "done jobs" and marks it as failed.

To check the cause of the issue it´s necessary to open the log file and looking for error and warning messages.

 

Proposal:

Add the code or name of the last error or warning from the log file to the notification column.

This can be helpful to get a better overview and makes it easier to find the problem.

 

ErrorCodeJobManager2.png

 

Greets,

Andreas


5
Vote

See German version down below.

 

Dear Moldlfow-Community,

 

Different roughness or grains on surfaces are more and more important in injections-molding-processes. My question is, how are the different roughness or grains influencing the injection-molding-process? Sometimes the molds have different roughness and sometimes the manufactory is using a special grain to realize a leather optic (for example).

 

The different surfaces influence the fill- and cool-behavior of the cavity. The flow front should be slowed down near the surface. Another effect should be visible in the cool-behavior due to a bigger surface. The time to reach the ejection temperature should be shorter.

 

My idea is to give the elements in the DualDomain mesh a specialized property. These properties can be different roughness values (EN ISO 25178) or special grains- “profiles”. After the allocation, the properties from the DualDomain mesh will be transmitted to the 3D mesh.

 

I hope my idea makes sense.

 

Kind regards from Hamburg Germany

 

Alexander

 

_______________________________________________________________________________________________________________________________

 

Hallo Moldlfow-Community,

 

Der Einfluss der Oberflächen-Beschaffenheit erlangt in Bezug auf den Spritzgießprozess immer mehr Bedeutung. Mir stellt sich die Frage, inwieweit die Oberfläche der Kavität Einfluss auf den Spritzgießprozess hat. Zum einen unterscheiden sich die Oberflächen in verschiedenen Rauheiten und zum anderen werden gezielte „Maserungen“ in die Kavität eingearbeitet. Um zum Beispiel eine Lederoptik in Fahrzeug-Interieur-Bauteilen zu erzielen.

 

Diese unterschiedlichen Oberflächen nehmen Einfluss auf das Füll- und Abkühlverhalten. Zum einen besteht die Gefahr, dass einzelne kleine „Vertiefungen“ nicht ausgefüllt werden können. Zum anderen wird die Schmelze im Randbereich verlangsamt. Weiterhin müsste die vergrößerte Oberfläche, Einfluss auf die Kühlzeit haben.

 

Meine Idee ist es, im DualDomain-Netz den einzelnen Oberflächen bzw. Elementen bestimmte Eigenschaften zu geben. Wie zum Beispiel Rauheitswerte nach EN ISO 25178 oder speziell hinterlegte Oberflächen-„Profile“.

Nach der Zuweisung der Eigenschaften im DualDomain-Netz kann man ganz normal 3D vernetzen und die vorher vergebenen Eigenschaften werden auf das 3D-Netz übertragen.

 

Ich hoffe meine Idee ist einleuchtend und findet unter uns Moldflow-Usern Anklang.

 

Grüße aus Hamburg,

 

Alexander Braune