1. Two parts is welded and added to an assemly ( frame + chair)
2. Support brackets shall be added > it would be very convenient to use weldment + trim/extend
Problem: trim/extend does not work when I use "edit component" since the rest of the assembly cannot be selected in the trim/extend feature
How should I do this? To add frame + chair in the same part is not how it will actually be manufactured
Create reference planes in your part at the assembly level,(for the surfaces you wish to use to trim).
In the part you can use these planes as your trim planes.
Yes I tried that, and it works, but to me it seems to be extra work when SW already have the neat "trim/extend" in the weldment application. It is frustrating. So the question may also be: does "trim/extend" not work for assemblies and why?
How should I model an assembly of welded structures in a "best practice" way?
I just asked the weldments expert in my office and says it is by design that you can´t perform weldments features within the asm context. Although we dont know why.
Is it possible to do it by inserting two parts into a new part?
In general terms, assembly is to assemble components (like fasteners being used to assemble two plates) whereas weldment is when you weld them.
So create you components in single part and build configuration to show them as pcs. Weldment are not meant for assembly.
Weld functionality as it is used is defined around how is it made.
If I have 2 weldments mated together in an assembly it is by design intent that these 2 will be manufactured separately from each other. The trim extend function is based upon this manufacturing principle. All things contained in a weldment are onto it's own function. Hence outside direct trim is not an available option.
As far as software goes could this be an option to use? Certainly, I would not mind being able to utilize more convenient things like this if I needed them.
Having designed and welded myself more structures than I care to remember, I think the way the software sets this up is to make you think of "how" your parts are going to be made.
In the case of what you are describing for your parts I would say you really only need 1 weldment and not an assembly anyways. You can change materials/ appearances per body per occasion.
As far as separate parts you can detail individual bodies and pull your weldment apart as you deem needed.
Just my 2 pennies worth.
Thank you for the comprehensive answer. I will pull appart bodies to make the manufacturing order more clear
In general terms, assembly is to assemble components (like fasteners being used to assemble two plates) whereas weldment is when you weld them.
So create you components in single part and build configuration to show them as pcs. Weldment are not meant for assembly.