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11-26-2014, 07:55 AM | #1 |
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Textbook Weld Pentration Picture
This is an old picture I just rediscovered and it just make my dorky engineering mind happy. You have to have a serious amount of commitment to the craft of welding to attain this level of skill on a daily basis. Penetration is complete, clean, and smooth (not built up) to the touch. I feel very fortunate to have these kinds of resources under our roof.
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11-26-2014, 10:33 PM | #2 |
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Purging involved, right?
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11-27-2014, 01:43 AM | #3 |
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Thumbs up!
Sent from the twilight zone. |
11-27-2014, 03:23 AM | #4 |
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d000000000000d should be weldin up nuclear reactors an **** like that
marvelous welding, that |
11-28-2014, 05:43 AM | #5 |
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11-28-2014, 12:35 PM | #6 |
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Also notice how BOTH sides of the metal were cleaned and not just one. Weld prep is a major deal.even though you cannot see the outside its definately prepped if we went through the trouble cleaning the inside.
Looks awesome and consistent |
12-02-2014, 01:36 AM | #7 |
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You dont know how many people skip this step..... blows my mind.
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12-02-2014, 02:38 AM | #8 |
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Yep or the bosses that don't care about it...... Prep is always the most important. If you fail there you fail everywhere else
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12-03-2014, 01:18 PM | #9 |
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So what are/would be the best prep practice?
Grind/sand both sides back purge also use a solar flux like product? |
12-03-2014, 03:25 PM | #10 |
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We use various grinders and sanders for prepping materials and we are picky about cross contamination. Every material type has it's own sanger/grinder.
All surfaces should be cleaned prepped according to the type of weld called out. This particular (.065 wall tube) weld has a bevel on the outside surfaces. Stainless tube should ALWAYS be back purged. No Solar Flux. |
12-15-2014, 01:50 PM | #11 |
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Very good pic.
I also use acetone to wipe the filler rod and weld areas right before welding. It's amazing to see how dirty a "clean" tube is before a good wipe. |
04-08-2020, 06:53 AM | #12 |
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nasioc killed the link so re-adding...
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04-19-2020, 11:41 PM | #13 |
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That is definitely a beauty of a weld.
You don't like Solar Flux? Back purging is always better, but sometimes a little Solar Flux makes the weld possible where back purging well is near impossible. |
04-20-2020, 08:27 AM | #14 | |
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Quote:
I agree. I see where Solar Flux may be a benefit; where back-purging isn't practical. It just doesn't provide as consistent and clean a weld as good technique with back-purging. Due to the flakey nature I'd never use it on a pre-turbo exhaust part I couldn't get eyes on to clean/grind as that's just asking for trouble. |
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04-21-2020, 11:41 PM | #15 | |
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