Think this will hold up

[escavader]

For wood splitter wedge.they are very large chipper knifes.i had them sharpened and was gonna weld two togeather3/4 inch thick
What rod ?



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[4570Man]

I doubt it especially since they have slots cut in them. They are hardened steel and are brittle. I did make a backhoe scraper and used the blade from a chipper. It has held up, but doesn't have a fraction of the force of a wood splitter.

 

[ovrszd]

I think the success/failure is totally dependent on your splitter strength??

As for welding them together, I'd use 7018 and crank up the heat.

 

[aarolar]

Preheat and post heat are important preheat till its too hot to touch with gloved hands for more than a few seconds then weld it. After bury it in dry sand wrapping in fire blankets works too leave it overnight at least.

 

[Mark @ Everlast]

That is more likely to crack than weld well.

 

[aarolar]

Exactly why I told him to pre heat and post heat.

 

[bigdeano]

Stainless rod works very well on hardened steel. It's very ductile and resistant to cracking. I use 308L because that's what I have, but apparently 309 is made for this.