Page 3 of 3 FirstFirst 123
Results 51 to 59 of 59

Thread: How would you weld this broken cast iron part?

  1. #51
    Join Date
    Jan 2009
    Location
    Sonoma County, Northern California
    Posts
    1,060
    Post Thanks / Like

    Re: How would you weld this broken cast iron part?

    Quote Originally Posted by Welder Dave View Post
    ,,, small furnace like they use for forging to heat it up ... You could make one with some fire bricks and a Tiger torch (weed burner).
    I heated with the burner from a turkey fryer when I had a simpler project, using nickel rod to re-attach legs and feet that had broken off of cast iron lawn furniture.

    * Amico MIG-130A Flux, Dual Voltage. Truly portable!
    * HF MIG-180 with all the mods. Heavy.
    * Grizzly H8153 Stick/Tig 130/160.
    * Wards PowrKraft AC-230. Stick & carbon arc.

  2. #52
    Join Date
    Dec 2013
    Location
    Mount Tabor VT
    Posts
    9,001
    Post Thanks / Like

    Re: How would you weld this broken cast iron part?

    Quote Originally Posted by Simclardy View Post
    This is the h bracket

    Sent from my SM-G960U1 using Tapatalk
    Case uses a lot of ductile iron. Might be a genius able to weld it somewhere. I have a friend ignores all the warnings & labels cast into it: "DO NOT WELD" He tries again & again to weld. A similar part on a Case backhoe I bought an aftermarket part of fabricated steel. The Case part is $1300. The fabricated aftermarket part was $600.
    An optimist is usually wrong, and when the unexpected happens is unprepared. A pessimist is usually right, when wrong, is delighted, and well prepared.

  3. Likes 12V71 liked this post
  4. #53
    Join Date
    Mar 2018
    Location
    Sechelt, BC
    Posts
    382
    Post Thanks / Like

    Re: How would you weld this broken cast iron part?

    Go on Yoobtube and watch how engine blocks are repaired in the 3rd world…amazing.
    Do not believe everything that you think.

  5. Likes California liked this post
  6. #54
    Join Date
    Dec 2013
    Posts
    2,108
    Post Thanks / Like

    Re: How would you weld this broken cast iron part?

    Quote Originally Posted by Willie B View Post
    Case uses a lot of ductile iron. Might be a genius able to weld it somewhere. I have a friend ignores all the warnings & labels cast into it: "DO NOT WELD" He tries again & again to weld. A similar part on a Case backhoe I bought an aftermarket part of fabricated steel. The Case part is $1300. The fabricated aftermarket part was $600.
    Ductile is great stuff but it is not really easily field weldable to get it right. The nodule carbon structure in the original casting is formed during cooling driven by a violent treatment with FeSiMg that cannot be easily reproduced in the weld zone without specific post weld heat treatment and proper weld materials and procedures. If that part is ductile iron (and given what it does, I'd suspect that it is) the repair would be expensive and probably less than satisfactory. If you can find a steel part like Willie did, I'd do that. YMMV
    ---Meltedmetal

  7. Likes 12V71 liked this post
  8. #55
    Join Date
    Aug 2019
    Location
    northeastern PA.
    Posts
    310
    Post Thanks / Like

    Re: How would you weld this broken cast iron part?

    Quote Originally Posted by shovelon View Post
    Yep, pricey, but this filler does not require preheat or special post weld cooling. There are a lot of antiques restoration firms in Los Angeles that can't find replacements to the original. I make my money and run.
    I've tried this product. Ending up with the infamous "TICK" during cooling .

  9. #56
    Join Date
    Nov 2014
    Location
    Southern CT
    Posts
    859
    Post Thanks / Like

    Re: How would you weld this broken cast iron part?

    Quote Originally Posted by BillE.Dee View Post
    I've tried this product. Ending up with the infamous "TICK" during cooling .
    A lot depends on the part or where on the part the joint is. If the weld is constrained there is the possibility for cracks upon cooling/contracting. Sometimes it can be beat by going slow and allowing it to cool in between welds, sometimes not. If the joint is not constrained, (think tab on the edge for lack of a better example), good results are more likely. Cast iron is not the easiest material to weld repair, the material itself can be inconsistent. Results are never guaranteed.
    I have used braze with flux and torch, tig braze with silicon or aluminum bronze, nickel 99 stick and tig both hot and cold, and more recently EZtig. I have been getting good results with the EZtig, but don't use it every time.
    Ernie F.

  10. Likes shovelon liked this post
  11. #57
    Join Date
    Dec 2010
    Location
    SoCal-LA
    Posts
    10,170
    Post Thanks / Like

    Re: How would you weld this broken cast iron part?

    Quote Originally Posted by BillE.Dee View Post
    I've tried this product. Ending up with the infamous "TICK" during cooling .
    I sometimes get the tick as well. If it is a crack I grind out and continue. If I cannot find a crack reckon the tick to shifting or my neck cracking.
    Everything on my bod is cracking these days.
    Weld like a "WELDOR", not a wel-"DERR"
    MillerDynasty700DX,Dynasty350DX4ea,Dynasty200DX,Li ncolnSW200-2ea.,MillerMatic350P,MillerMatic200w/spoolgun,MKCobraMig260,Lincoln SP-170T,PlasmaCam/Hypertherm1250,HFProTig2ea,MigMax1ea.

  12. #58
    Join Date
    Jul 2014
    Location
    Puget Sound
    Posts
    205
    Post Thanks / Like

    Re: How would you weld this broken cast iron part?

    Quote Originally Posted by smithdoor View Post
    Did you get job done?
    Dave
    No, I returned it to the owner, suggested he find someone with more experience to weld it!

  13. #59
    Join Date
    Mar 2018
    Location
    Clovis California
    Posts
    7,786
    Post Thanks / Like

    Re: How would you weld this broken cast iron part?

    Probably for best.

    Dave

    Quote Originally Posted by stoneaxe View Post
    No, I returned it to the owner, suggested he find someone with more experience to weld it!

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
Page generated in 1,664,830,044.11283 seconds with 12 queries