How hot did it get? I would assume you ruined the temper? Maybe?
Pretty sure that knife is wrecked. My cast iron can get to 300C on an induction in 2 mins. Anything above 120C will start to affect HT.
If you want to pay for the shipping, I willRIP KK Nakiri.
Whats 'KK'?RIP KK Nakiri.
Masamoto KK NakiriWhats 'KK'?
In theory. The edge is likely to turn wavy, then regrind. You would loose height and geometry.I'm not even close to an expert, but couldn't it be re-heat treated? Ya might lose a couple mm in height, but the right person should be able to handle it, (pun not intended).
I say, just clean it up and use it. I'd be interested to hear your observations on what affect the induction had on the knife—whether better or worse. Don't write it off yet.
Yes, looks like the patina is permanently fused to the knife at the molecular levelI say, just clean it up and use it. I'd be interested to hear your observations on what affect the induction had on the knife—whether better or worse. Don't write it off yet.
Personally, looks pretty cool. #wabisabi
When I first got into J-knives about a decade ago, I watched with fascination a Mark Richmond video on doing a mustard patina. @JayGee would get many views, with an instructional video on DIY 'induction patina'!Yes, looks like the patina is permanently fused to the knife at the molecular level
Never know induction knife forging was a thing!
I know little about making knives—buy seems like an induction forge would be a major space saver, also potentially a much smaller carbon footprint than a traditional forge. Green knives!It’s a cool thing. It’s way way cheaper to run than a propane forge.
The startup cost is way way higher. Forges have hot spots tooTemp control must be a bear to control in an induction coil. Hotspots and such. There has to be good reasons why its not widely used.
On your pic it looks way past blue in the circle. So it's been in a bad place temp wise, like tempered above 350c. It will probably be very soft.First step clean and sharpen - then I'll report back. But the KU has definitely changed in some parts, while being completely removed in others. On the non-pictured side of the knife there is a circle of perfectly removed KU precisely where the knife sat over the induction coil.
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