Thread: Cast Iron Weld Repair

I have done it before a few times with my stick welder.

The first attempts were bloody disastrous, although I believe I can do it successfully enough to give advice.

Clean and prep the work well. Heat up the two pieces to be joined before attempting to weld. Perform weld, and peen the surface immediately after welding to reduce surface tension. The weld shrinking when cooling pulls the weld from the parent metal. Heating the parent metal and the peening process reduces failure rate significantly.

Oh.... 2.5mm cast iron electrodes will set you back about $6.00 each.

Good luck.


EDIT... How big is the break? How many sticks will you require?

I have a few in the shed, so you're welcome to some to get the job done.

Fossil,
Thanks for the offer ,but I have already done the repair using a metal powder technique,I just posted the link here so if any one was interested they could go look .
I have done a lot of cast iron welding with stick and powder and I prefer the powder .I've had 100% success rate with powder , but not so with stick.


Kev.

DoH!!!

I just had a look at the saw. It looks really nice. You are doing a great job on it.
I am looking about for a hacksaw myself. I much prefer them over band saws for various reasons.

Thanks for the kind words ,I try to do things the right way.
I do know of another Parkanson hack saw here in town ,not as large as mine but a smaller model with out the hydraulic up and down feed..It's also missing a motor .
Probably cost a fortune to get it to you ,providing the guy wants to part with it of course.

Kev.