Welds

[bretonh]

Hello,


I'm a relatively new user to Pro/e. I'm running wildfire 3.0.


I'm trying to create welds in an assembly. The weld preps go in fine, but the weld itself only shows up as a 2D sheet. The weld does not fill the void left by the prep so that when I do an assembly cut after the weld, there is a void left.


Am I doing something wrong, or is this how pro does welds?


Thanks

 

[Israr]

this is how pro does welds.


Israr

 

[TrailBarge]

I actually gave up on pro/weld. If on weld intersects another, the whole thing goes to down the tubes.


I model all of the preps explicitly in the parts and assemble them. Then I create a part in the context of the assembly called WELD and I generate actual geometry, leveraging paths as much as possible.


The advantage to this is that you get real geometry with mass props, plus it details better as well. I give the weld part in any cross sections a tight hatch or solid fill and it shows up really nicely.


You have to create your own weld symbols (no great loss, considering how bad the stock symbols are) and you do have to play games with the weld geometry, but it is the best tradeoff I could find considering the monstrous weldments I deal with in my position. Intermittent welds might be a bit problematic with this approach.


Good luck

 

[gn3d]

TrailBarge
Interesting to hear I'm not only one who is doing welds this way - question ?


Main reason I do it this way (although I sometimes use ProE/Weld depending on what it is I'm doing)is to allow me to use Mechanica to model stress distribution in welds - I wondered if you were doing this and what kind of results you get etc. ?Have you found any guidance on this (I have found some NAFEMS papers which refer to reports by International Institute of Welding and also includes guidance on linearising stress across weld, which is quite good for dealing with 'hot-spots') ?


Anyone else trying this kind of thing?

 

[pjw]

Creating welds as solid parts is all well and good. But wait unitil you come to family table instances. Missing silhouette edge references and all sorts to go wrong. Further problems arise if you take an assembly cut through the weld (as in the case of a j-prep flange and tube). Pro/WELD has never been one of Pro/E's strong points and although the weld only shows up as a surface in your model, when you go to create a drawing, the depth of weld should show up as solid hatching. Providing of course you specified the penetration. Welding anything other than simple fillets almost always requires the construction of datum curves prior to weld. And then you have to atart splitting them and playing around with them to ensure that the start points of the weld correspond with each other.


Phil

 

[ice8]

at my company we use pro-weld light


it doesnt show up as a surface but as a thicker sketch


your right pro-weld is behind even the likes of inventor


however in light it does account for the mass of the weld


and then after that we use the show erase to add them into drawing


1 tip in doing it in light is this


start welding then select fillet type size in then before you start selecting and edges or surfaces stop and start a new sketch instead just like drawing a normal sketch you can use the use edge safely in this mode with no other refernces or add as many as you want then exit sketcher then click ok 3 times and your done


the bonus of doing it this way is you can easily change the sketch to anywhere and the weld updates


also looks nicer in the model tree as it groups the weld with the sketch and names it fillet1


fillet2


and so on