The strength of any weld is largely influenced by its cooling rate. The cooling rate of the stringer bead is much faster and therefore the grains are much smaller than for a weaved weld. However the cooling rate also has an effect on the HAZ which is often the weakest part of the weld. Due to the faster cooling rates of the stringer weld, there is less heat available for the growth of a HAZ, and so the HAZ of the stringer weld is narrower, giving a smaller "weaker" area and a stronger weld.
And there are other mechanical properties to consider. Stringer welds will generally be harder, less ductile and more creep resistant than weaved. I don't know about corrosion resistance or fatigue behaviour.
Stick Welding Tips, Certification tests, machines, projects
Jim
Pipefitter/Weldor out of Local 396
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Pipefitter/Weldor out of Local 396
Millermatic 252
Dynasty 200DX
Maxstar 150 STL
Spoolmate 100
Hypertherm Powermax 85
Miller Digital Elite
JD2 Model 32 Bender
Emerson 7120 Horizontal/Vertical Bandsaw
Oxy-Gas Torch outfit
Generac XP8000E Generator
jwmacawful
- jwmacawful
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kermdawg
- kermdawg
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You can do that, but I'll tell ya what man. Every book I've read and every welder I've talked to will tell ya to learn as much metallurgy as you can. The more you know about metallurgy, the better a welder you will make. Some food for thought :)jwmacawful wrote:that's way too deep for me. i'll leave the metallurgy to the engineers.
Signature? Who needs a F***ing signature?
jwmacawful
- jwmacawful
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i'll tell you what and no offense, been welding for almost forty years~ everything from splicing 4" thick "H" beams to welding high pressure steam lines and repairing cast iron, have my 1st. class welding license for over 30 years. have you ever heard the story about teaching old dogs new tricks?
jwmacawful
- jwmacawful
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jwmacawful
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