@blair wrote:
I don't think you can. I tried a new View rep with the welds suppressed and they stay suppressed when you go back to another view. I did the same with Level of Detail and they stay in the suppressed state as well.
I guess you could do a drawing with the welds suppress, then turn on the Defer Updates on the drawing sheet. It might work for you. I just hate having drawings that are in a Defer Updates state.
@blair, you're thinking a bit too much of the welds as being like a part. Welds are considered an assembly-level feature, so Suppressing acts the same as Suppressing an Extrusion in a part, rather than acting like Suppressing a part in an assembly. View Rep doesn't matter, LOD doesn't matter, Suppressed is Suppressed when it comes to features.
However, if you right-click on the "Welds" line in the browser, you can turn Visibility off instead. Then what you were trying to do with View Representations will actually work. Additionally, you can right-click on this same "Welds" line, go to the iProperties, and use the "Weld Bead" tab to change the Appearance of the welds. This doesn't really help with a drawing view, but I use it often to recolor welds to match the painted assembly. This setting also respects View Reps, so you can have the welds look like welds in one, and be painted the same color as your finished weldment in another.
I use this method all the time when I need to get weld geometry out of the way for clarity, but still want to show post-weld machining. @mcgyvr's suggestion about using the Assembly stage to show this will work in many cases, and is less work when it applies. But it doesn't work out for situations when you need Machining features to remain visible, but Welds to be removed.