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#25
10-29-2022, 03:57 PM
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Re: Micro TIG welders
0.9mm, .035" 20 ga 1008 steel. Butt joint, fusion weld at top only, minimal surface prep. Cut perpendicular to weld seam. Shown through 5x microscope and raw camera capture. Small shiny things are really hard to take pictures of.
Power level: 66J   Not full penetration. Joint is homogenous. Very little heat discoloration on bottom Power level: 100J   Full penetration. Has a slight stripe thru the joint. Bottom shows heat effect 
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