That's the way to do it.Lyonsie wrote:I've cut the holes to the inside diameter of the ferrules. The positioning of the 2" ones would allow for them to be cleaned before it went together. I've someone else coming to look at this today. All advice is much appreciated.
Now you will be able to tack weld the material to the ferrule from the inside.
I marked it with an arrow on the picture.
When one is tack welding stainless, the distance should be far less than on mild steel as stainless has a tendency to warp.
Once you've got it all lined up and tack welded, you can weld the whole inside.
It can simply be done by just fusing the two edges together without filler rod.
1: It gives you a nice rounded weld and 2. There will be no ugly black slag on this side when you weld the circumference from outside.
3. You'll be able to control the welding torch with both hands as you won't have any filler rod to add, this gives you a very sturdy and exact welding position.
Finally, if it's done that way, you can weld without purging gas and still have a fine result.
The result can simply be buffed up with a stainless brush wheel after it has cooled down.
On a weld like this I would use 40 A or less and use pulse, if the welder has got this function.