Customised Spot Welding question?
Customised Spot Welding question?
(OP)
Hi,
I have a question regarding a custom spot welding application: Is it possible to spot weld through the thin edge of a sheet metal (~3mm) rib standing perpindicular to a mating flat sheet (~0.5mm)? (See attached pic)
And the sheets may be pre-galvanised!

My experience with RSW is limited so not sure if this idea is technically feasible.
As a follow up question, with this application could the spot weld be ganged, ie n-welds along the rib per cycle?
Thanks, Richard
I have a question regarding a custom spot welding application: Is it possible to spot weld through the thin edge of a sheet metal (~3mm) rib standing perpindicular to a mating flat sheet (~0.5mm)? (See attached pic)
And the sheets may be pre-galvanised!

My experience with RSW is limited so not sure if this idea is technically feasible.
As a follow up question, with this application could the spot weld be ganged, ie n-welds along the rib per cycle?
Thanks, Richard





RE: Customised Spot Welding question?
If it could be done, I think it would be worthless in fatigue.
RE: Customised Spot Welding question?
I agree that the weld strenght would be vlow, but think that can be compensated for by a number of welds along the rib length. What I've shown in the image is a small section of a larger part.
Had another thought that similar to stud welding a V-shaped projection could be on the rib to improve the weld creation?
RE: Customised Spot Welding question?
RE: Customised Spot Welding question?
Plus the final part is big-ish - car body panel size...
Will probably see about running some sample parts on a spot welder just for the hell of it...
RE: Customised Spot Welding question?
RE: Customised Spot Welding question?
A projection along the bottom edge of the butting (vertical)member so that the projection makes point contact with the nonbutting (horizontal) member. The current would be forced through the localized point of contact. There would be some shunting effect from adjacent points of contact and adjacent welds, but that can be offset by controlling the amperage.
Best regards - Al
RE: Customised Spot Welding question?
RE: Customised Spot Welding question?
It's just one of a few ideas and I was interested in whether this was even feasible. The general consensus and some of the manufacturers I've spoken to seems to be 'no'...
(ps. 30m should read 30mm)
RE: Customised Spot Welding question?
RE: Customised Spot Welding question?
The downsides I can see are the 0.55mm sheet being very thin and I really need the face opposite the ribs to be smooth. So would need post-weld linishing and a touch up with paint. But still it might be feasible and still automated for high volume.
Thanks