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  #16  
Old 11-17-2018, 10:05 PM
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weisan weisan is offline
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thank you m-h pal.

I noticed the 'dimes" are quite a bit smaller than the ones I am used to seeing....is that "special" too?
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  #17  
Old 11-18-2018, 10:42 AM
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zank zank is offline
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Thanks for the kind words, folks.

Weisan, the ripple pattern is the result of freeze lines that are generally created one of two ways. The first is that the weld puddle is cooled when filler wire is added to the puddle as the weldor moves ahead with the torch. This creates a freeze line on the trailing edge of the molten puddle. The second way is the welding machine is set to alternate between a high and low amperage (heat) at a set time interval. This is called pulse welding. The weldor adds filler on the high pulse and the freeze line is created when the machine switches to the low pulse. The weldor then moves ahead to advance the weld.

I don't pulse and I tend to prefer thinner filler wire for all materials. This allows me to keep the overall heat lower because the filler doesn't chill the puddle as much as when using a thicker wire. I can travel faster. But this requires more frequent filler additions to get the proper fillet size. The result is a tighter ripple pattern than what you are used to seeing.

These are huge generalizations. There are a ton of variables in both pulse and "constant" current welding. I put constant in quotes because we are still controlling the current at any given time with the foot pedal, so it's not really constant. Maybe "non machine pulse" welding is a better description.

I hope that helps a little.
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  #18  
Old 11-18-2018, 02:45 PM
PaMtbRider PaMtbRider is offline
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Is this a sign that you are now offering Ti bikes to customers and you might be opening your wait list again?
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  #19  
Old 11-18-2018, 06:41 PM
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weisan weisan is offline
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Zank pal, thank you for taking the time to explain and educate, I really appreciate it!

I also found your YouTube video very helpful.

https://m.youtube.com/watch?v=TLbC5Qlpjgw&t=597s
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Old 11-19-2018, 05:53 AM
soulspinner soulspinner is offline
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Quote:
Originally Posted by weisan View Post
Zank pal, thank you for taking the time to explain and educate, I really appreciate it!

I also found your YouTube video very helpful.

https://m.youtube.com/watch?v=TLbC5Qlpjgw&t=597s
Yes thanks for the explanation as I noticed just how tight the welds were and wondered about it. Very nice work.
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