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Thread: Making wood chipper knives
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9th January 2023, 12:10 PM #1Most Valued Member
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Making wood chipper knives
Just bought a set of knives for an old Hansa C7 wood chipper. They are about 120 x40x7 with 3 countersunk holes, and $150 for the pair.
I've thought about making them previously for our old Masport chipper/mulcher, but from memory a set of blades was only about $40 so not really worth the effort.
While looking around at what type of steel they are likely made out of, I came across this site talking about using hardfacing to make them.
https://www.hardfacetechnologies.com...chipper-knives
There was a question asked a few months back about hardfacing mower blades and the general response (and also my view) was that it wasn't a good idea. Blades are too thin and they aren't contained so if there was any shrapnel from eg a stone impact it could be nasty.
Chipper blades are a different situation IMO. Much thicker than a mower blade, and apart from the outlet chute the blade area is fully contained in a 5 or 6mm steel drum.
I've never done any hardfacing, but very interested in giving it a go.
Anyone actually done it - particularly with chipper (or similar machine) knives?
Any thoughts or recommendations on a locally available hardfacing rod that would be suitable - either stick or TIG?
Steve
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