Tig welding tips, questions, equipment, applications, instructions, techniques, tig welding machines, troubleshooting tig welding process
Artie F. Emm
  • Posts:
  • Joined:
    Thu Jul 24, 2014 7:53 am

Any strength added, or value of any type, if you were to drill 1/2" holes in the outer sleeve, and plug weld to the inner sleeve?
Dave
aka "RTFM"
BigD
  • Posts:
  • Joined:
    Thu Jan 07, 2016 1:56 pm

Others who know what they're talking about can answer that better but I wouldn't try that, feels like adding unevenly distributed welds can add stress risers and uneven tension. I want to make the joint as uniform all around as I can.
BigD
  • Posts:
  • Joined:
    Thu Jan 07, 2016 1:56 pm

Turned out well! I still can't quite wrap my head around how much welds make metal move around. I know it does but I find it hard to "feel" like it's real. My friend machined it to such a press fit that he needed to use his mill table to assemble it. He adjusted it to a 0.002"ish runout and handed it over to me. I hit it with quick hot tacks every 120 degrees. Then did an autogenous root followed by a cover pass. It was up to almost 0.03" runout! I feared I'd need to cut it back apart, readjust and reweld but I went over with the pulser over the entire joint again and an extra pass where it was "long". Then hit it with compressed air as I checked it. Now it's back down to 0.0025" runout. I don't have a pic of the final weld but I'm very happy with it. It's barely above surface and the ripples are very tight and shallow (the final pass before the air gun was at a high pulse rate). I definitely penetrated to the sleeve so I think it's as good as I can make it.
25358291_10211224158700898_992663562829098431_o.jpg
25358291_10211224158700898_992663562829098431_o.jpg (65.29 KiB) Viewed 1095 times
25352190_10211224157860877_3914895812190729801_o.jpg
25352190_10211224157860877_3914895812190729801_o.jpg (72.41 KiB) Viewed 1095 times
25182374_10211224158260887_7227622408892209580_o.jpg
25182374_10211224158260887_7227622408892209580_o.jpg (37.6 KiB) Viewed 1095 times
25438961_10211256380186415_5649011758408947722_o.jpg
25438961_10211256380186415_5649011758408947722_o.jpg (65.92 KiB) Viewed 1095 times
25394916_10211256380226416_348625137451650648_o.jpg
25394916_10211256380226416_348625137451650648_o.jpg (70.33 KiB) Viewed 1095 times
IMG_4292.JPG
IMG_4292.JPG (36.78 KiB) Viewed 1095 times
IMG_4294.JPG
IMG_4294.JPG (37.7 KiB) Viewed 1095 times
Post Reply