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David Pacheco
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David Pacheco
Twin
Rio De Janeiro
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Brazil
Welding, Mechanical Engineering, Creative Development
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David Pacheco
Twin
Rio De Janeiro
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Brazil
Welding, Mechanical Engineering, Creative Development
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David's Mechanism of Fatigue Fracture - Innovation
David's Mechanism of Fatigue Fracture - Innovation
David Pacheco
25 Feb 16
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Fatigue tension test; SS AISI 316; Room temperature (25° C); 30 million of cycles; Fracture Stage I; David's mechanism.
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David-Pacheco's Blogs/Portfolios
Fatigue Tension Test at -196° C - ...
Austenitic Stainless steel AISI 316; Frequency of 120 Hz; 30 million cycles; Stages I and II of brittle fracture; Stage III of the ductile fracture di...
Mig Welder
I trained and qualified 65 Mig / Mag welders. In the photo a Mig welder performs a weld bead in the vertical down position. Non-qualified welders do n...