Stack of dimes

[porsche_runner]

Hello out there. (Don't worry, my mother was British so I can translate. )

I often see "bragging" photos of welding that has the "pushed over stack of dimes" look. Here's what I mean:

A few questions...

1) Does that really indicate a better weld?
2) How is that done? By changing the arc length as you weld?

 

[shenion]

1. It shoes the weld was done with some weaving of the torch instead of a straight line. That widens the bead and may increase penetration. "Better" depends on if you want a wider weld.

2. That is done by using a zig-zag motion. Looks like very small side to side motion in weld. Usually done with zig-zag motion with a bit of curve in the lines.

 

[Luke]

Tig welding can look like a chain of circles, I've seen Mig welding done to look like Tig, probably by stop-starting which would make it weeker than a decent seam, so i think it depends on what you want, and what you're using.

 

[irondarren]

Could be done on a pulse on pulsy synergic machine, if set up right they are supposed to produce near TIG quality welds. But you won't find a good one for less than 6000 quid

 

[Rail_Head]

I've often heard this termed as 'fish scale welds'.

This shows the welds on my mountain bike frame (GT Zasker LE). Its 6061 T6 alli. I think the welds look like a work of art ! would love to be able to weld like that!

 

[snowcat]

To get a weld like that you would proberbly be walking the cup or simlar technique to achive the symetry, its makes a nice apperance but boy it's hard work.

 

[porsche_runner]

Fish scales

Em... Walking the cup? What's that?

 

[Drains]

Walking the cup - Keeping the ceramic touching the work, rolling the tig torch left and right, and walking it along the job, keeping the filler wire in the weldpool. Gives a very smooth appearance to the weld and can be very fast, compared with the usual style of tigging.

 

[migmag]

Mig welds can be done like that "chain tacking" and is as strong as a seem if done correctly.

I sometimes had to do it on steel work if it was visable.....

Takes alot longer but does look good and is bloody tidier.

 

[Hitch]

A good steady hand helps a lot with tig in place where you cant rest the ceramic.

As for mig, set it slightly cooler than maybe you'd normally have, and do a back and forth motion. Will give the apperance, and youll have the time to control the weld.

 

[lexi]

I hate the look of that welding.............looks like a Ragworm!

Alex

 

[Drains]

I hate the look of that welding.............looks like a Ragworm!

Alex

mmm..tasty

 

[scarecrow]

mmm..tasty[/QUO
want a cup of them