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Can this knife be saved? (lemmy.dbzer0.com)
submitted 2 months ago* (last edited 1 month ago) by to c/buyitforlife@sh.itjust.works
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Got this as a gift second handed and would like to sharpen it and make it usable again. The serrated top part started to just break off, so I am cautious about potential metal parts in my food. Any tips welcome, thanks.

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[–] 1 point 2 months ago (1 child)

Yeah, and if it's like a fairly cheap knife or something, you could get a dude with a welder and have him weld in the missing steel, and then re-profile and sharpen the blade.

That's definitely more of a "make it work" fix rather than a "do it the right way" fix, though.

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  • [–] 4 points 1 month ago (1 child)

    You should never weld a knife. It will ruin the hardening and temper. Just re-profiling the existing steel is a much better idea.

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  • [–] 1 point 1 month ago (1 child)

    I mean, you can always re-temper as well, but now I do understand that that is going well beyond the pale of just grinding the metal down.

    That being said, depending on the knife, it could have a relatively thin, harder edge and grinding it down could go into the softer core metal.

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  • [–] 5 points 1 month ago*

    Heating, quenching, and tempering is not a great idea if it can be avoided. It stresses the metal and can introduce new weaknesses.

    And very few knives will have a softer core. That requires extra work on the knife makers part, and is rarely worth it. And there are signs you could look for during the repair and reprofiling. So a decent knife maker should be able to tell if it will be an issue.

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