Question on Ti welds

[cornice6]

Wanted to ask the different look of weld on these Ti frames. One (that I've seen mostly) is the staggered "scallops" type and the other is more smooth. Is this just the welder's particular style? Just curious..


http://img.photobucket.com/albums/v155/echelon153/Cycling/Capture_zpsde059249.jpg (http://smg.photobucket.com/user/echelon153/media/Cycling/Capture_zpsde059249.jpg.html)

http://img.photobucket.com/albums/v155/echelon153/Cycling/Capture1_zpsdd9b00d0.jpg (http://smg.photobucket.com/user/echelon153/media/Cycling/Capture1_zpsdd9b00d0.jpg.html)

http://img.photobucket.com/albums/v155/echelon153/Cycling/Capture_zps8035f490.jpg (http://smg.photobucket.com/user/echelon153/media/Cycling/Capture_zps8035f490.jpg.html)

[JasonF]

Looks like the weld in the last pic was probably sanded smooth.

[Scooper]

"Double-pass" TIG welding. (http://fireflybicycles.com/1112)

There are a few ways to weld the tubes together. We employ the “double pass” method. There are two stages to this type of welding. The first stage is laying a root pass. The root pass essentially melts the joint together, sometimes with a little bit of the filler rod and sometimes without any rod at all. Pictured above is a root pass.The root pass serves a couple of functions. First, it guarantees that the tubes are fully welded together with the proper penetration. Secondly, it allows more material to be put in the joints that are deeper so that the proper fillet can be achieved in the second pass, essentially laying the foundation for the final dress bead.

[Charles M]

Sand Paper

[jpw]

have a look at Passoni. the puddles are completely smoothed off after welding.

[mvrider]

Just curious who the builder was for this frame:

http://img.photobucket.com/albums/v155/echelon153/Cycling/Capture_zps8035f490.jpg (http://smg.photobucket.com/user/echelon153/media/Cycling/Capture_zps8035f490.jpg.html)