petert 588 Posted July 26 (edited) Probably not, but you said you were going to use chrome moly rods, which is, and takes considerable skill to use. I’d imagine they’re made of some type of special steel however and thus you’d need to be careful with heat. Edited July 26 by petert Share this post Link to post Share on other sites
Arthur 12 Posted July 27 (edited) Yeah. I just done the my trailing arm out of 25cromo4 and welded that with cromo rods. Didn’t seem too hard. But shaft seems even harder. I will try with good pre heating and see what I get. Is there a database of how long these shafts are this inners section alone. Edited July 27 by Arthur Share this post Link to post Share on other sites
SRDT 182 Posted July 27 Not knowing what steel PSA used it's better to assume you need to preheat and also let it cool in sand or inside an oven if you have a big one at hand. A pressed sleeve and plug welds will add a lot of mechanical strength even if it turns out welds on the mystery steel are prone to crack over time. Share this post Link to post Share on other sites
Arthur 12 Posted July 27 (edited) A sleeve was the plan indeed as soon as I found it to be hollow. Plug welds, I had to google. Underneath sleeve is just s*it metal but helps enormously to get it concentric. But I guess for good plug welds I need better steel sleeve as well. It would be a pain to drill as well this. I have dye check at work if that would help. Edited July 27 by Arthur Share this post Link to post Share on other sites
petert 588 Posted July 27 (edited) Maybe make sure there is a 1mm gap between the shafts so the root pass penetrates into the sleeve? Edited July 27 by petert Share this post Link to post Share on other sites
Arthur 12 Posted July 28 Yeah, figured that myself and did exactly that. Share this post Link to post Share on other sites
Arthur 12 Posted July 28 Not realy time to take pictures but I got 2 passed like this. Share this post Link to post Share on other sites
Arthur 12 Posted July 28 (edited) The welding did not feel much more difficult then even before but it warped more than expected. Now it’s 1/2mm bend. Edited July 28 by Arthur Share this post Link to post Share on other sites
Tom Fenton 1,542 Posted July 29 I have done this before, now put it in a press and press it straight. 1 Share this post Link to post Share on other sites
Arthur 12 Posted July 29 Cleaned the weld up to check all low parts and all seem to be welded through. The clamp of the boot is on the weld so extra safety there. Share this post Link to post Share on other sites
Arthur 12 Posted July 29 Now on the car, the left shaft deemed perfect is too long. Share this post Link to post Share on other sites
