Peter Dow
pre-moderated
- Messages
- 37
The need is not so much for how the weld looks but how the welded section behaves as it passes through the roller dies. It needs to bend just like the rest of the sheet.in which case no need for an invisible weld if its going to be cut
So fairly uniform thickness and good strength are needed qualities of the weld. If the weld is much thicker than the sheet then it will likely jam in or break the roller dies. If it weld is much thinner then it might come apart under the bending forces. If the weld is not flat but distorted then the rollers may be nudged off course.
I figured that if the techniques for "invisible" welds might be the right techniques for achieving the desired weld qualities but that's what I have come here to ask?
But sure if the weld line happens to be discoloured or otherwise noticeable yet it still "bends true" then no worries. So it is performance of the weld as per un-welded sheet that matters here, not strictly whether the weld is "invisible" per se.