deform 2d/3d users

[Francisc Vodnar]

Does anyone exist on this forum that uses deform 2d/3d software?

 

[Zurtolo]

I used it a lot... if you have any problem I can try to help you.. . .

 

[Gian_Poss]

Good morning! I am performing simulations of hot forming/printing, sheeting with thicknesses ranging from 60 to 120 mm by deform 3d v11. at the end of the simulation I realized that the upper mold (mask), which should imprint the shape to the sheet on the lower mold (female) does not go down until the desired shape is imprinted, as shown in the attached image, while having inserted a shift of the main mold (mask) equal to the radius of the lower mold (female). I ask you if there is a function that allows me to impose such contact automatically.

 

[MC1991]

Does anyone exist on this forum that uses deform 2d/3d software?

hello francisc, I use it mainly for hot plastic deformation (forming 3d and cogging module) and occasionally for heat treatments all on steel.

[...] I ask you if there is a function that allows me to impose such contact automatically.

Yes, there is this function and is located in the "stopping controls"->"stopping plane": then tell the simulation to stop when an object (e.g. your piece), reaches a certain quota/plan (in your case a quota in z) slightly higher than the inner bottom of your lower mold.

before doing all this, check to have modified the limit of "simulation steps" in "simulation controls": in the forming is set the maximum number of steps to 100 and since you posted a photo with step 100, I think that is the main problem.
I hope I've been clear

 

[Gian_Poss]

First of all, I thank you for the answer.
but if I go to insert the z quota in the "stopping plane" there is no need to put the "stemp inceremenet control"? as shown in the attached image
Moreover, not yet very practical with the software, I ask you with what criterion can I choose the number of optimal steps?

 

[MC1991]

stopping control deform always reasons with the first stop parameter reached "simulation controls"->"stopping criteria".
that this is
- a maximum time "stopping criteria"->"process parameters"
- a limit temperature "stopping criteria"->"thermal"
- an object that reaches a certain plane plan "stopping criteria"->"stopping plane"
for deform is indifferent, so you can use the stop temperature limit even if as "step increment control" use an 8.2mm/sec.

As for the maximum step number "simulation step" (which is the folder with the pins)-> "number of simulation steps", I usually use high numbers so that it is not limiting, except for applying true stopping control.

What's the last message that gave you the simulation?
what should your race be?

 

[Gian_Poss]

perfect, thank you again.
the problem is that if I go to impose only the race of the male mold I do not take into account the thinning of the sheet during the molding; so even if I go to impose a race equal to the radius of the female mold I can not guarantee the contact, and therefore the desired shape, between sheet and female mold.

 

[MC1991]

Hello, I hope I've been helpful. So you managed to finish the simulation?
Alternatively, you can increase the steps and set a maximum force higher than that achieved in the simulation that came to step 100 (I would say 20% more) and then truncate excess data when the piece goes into contact. Good evening

 

[Gian_Poss]

Thank you for your availability, and patience.. .
thanks to your straights I solved. the problem was in choosing the steps, as you pointed out to me too. Good evening to you too