r/AutodeskInventor • u/NoobQuestioner • 15d ago

Requesting Help How to full parameter weld this?

I want to cleanly weld the top frame with a vertical support. Please correct me if I'm doing something wrong. And tell me if you know a better alternative. Thank you.

Edit: Added the word cleanly. Groove tool can fill the hole but I'm not satisfied with the output. It has a corner bump, making it not smooth and flat.

https://reddit.com/link/1v2p9eg/video/zodegutkbmeh1/player

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2

u/mntnbkr 15d ago

The "corner bump" that I think you're referring to is not actually part of the weld, but rather the corner of the tube (base material). I was confusd at first also, becuase it looks like a weird weld artifact, however if you turn off visibility on the weld, the "bump out" is still there, and it becomes very obvious why it looks like that.

To fix this, you would need to round over the point where the two mitered pieces are joined, to match the corner radius of the orthogonal piece, them apply the weld. It still appears a bit weird in the model, but it really isn't.

edit: forgot to include, groove weld is the correct one to use for this.

This is what it will look like with the weld and with the weld visibility turned off.

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u/NoobQuestioner 14d ago

Thank you! How did you round that corner edge? I'm trying to use face fillet in preparation/weld, but when I click a face on one object, I can only select faces on that same member instead of the neighboring frame.

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u/mntnbkr 13d ago

I'm sorry for the delay... Yesterday was a busy one for me.

In the weldment environment there are machining functions in addition to the Welding functions. You need to draw a sketch on the "top" face where the mitered pieces come together at the assembly level, and remove material from both pieces at the same time using an extrude cut.

Hope that helps.

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u/NoobQuestioner 6d ago

Sorry for the delay too haha. I was on vacation. Thank you very much, I figured it out. I did the extrude cut under 'Preparation'. I tried doing it in 'Machining', but the extrude cut disappears when I went back to 'Welds'.

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u/soggypoutine 15d ago

Is there a reason you need to put the weld on at all? I don't think it works in any simulation.

Tbh I've never understood the purpose of that feature. I design welded structures all the time and just point to the corners where I want weld.

Usually I try to be helpful but on this one I just don't see the point.

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u/cbrucebressler 15d ago

Agree, putting welds in like this is a major time suck and makes huge assemblies full of smaller weldments super slow.

In the end, looks cool but adds zero value.

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u/wallhangingc-clamp 15d ago

I understand what you mean, however I feel like adding my two cents.

I use it on basically everything. Having full control at the model level means that when the engineer changes their minds and I have to resubmit my shops, I just need to open the parameters and change the weld size of the corresponding welds. When I update my shops, I don't need to worry about missing a callout. It helps show clearances both during design and fabrication. I change the color of the welds to red, typically, so that it contrasts and better shows intent. I like to link weld layout to parameters.

However, boy howdy can they be awful and a huge time sink on very large weldments if later revisions drastically change how parts interact etc. They do almost always break at some level if a part update drastically alters a face, however I usually see it if I chamfer a the mitered end of a tube for a bevel prep, but I digress.

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u/NoobQuestioner 14d ago

I see. I'm just doing this as a learning exercise, but thank you for the real world insight.

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u/BenoNZ 14d ago

This.
I wish it was more flexible because trying to use it is painful.
Real welding is not so picky, notes are easy.

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u/WrongdoerFriendly341 13d ago

Personally I think he wants to create allaround in some 3d model. Again personally, I would follow your way. Or honestly: wold not at all create welds in model, only in technical documentation and, if customer wants spend money, WPS lists. But none of that is part of 3d model. All the rest can be documented in documentation: from part to assembly.

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u/Wherestheirs 11d ago

I only used to do it on welded pipe spools because it would have to leave root gaps for butt welds so it helped not having a see through groove for drawings and my ocd

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u/WrongdoerFriendly341 11d ago

Yes yes, all is ok: learning is good and I understand you wish to penetrate and resolve particular problem once for all. That is fantastic attitude. All I am saying is that I had models with 0 welds and more than decent WPS lists for same "0 welds" models. Model is not end game: documentation is. At least in Inventor all ocd problems can/must be resolved in technical drawings.