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Reshaping an in-shave

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Blog entry by andyboy posted 865 days ago 3346 reads 0 times favorited 6 comments Add to Favorites Watch

This tool had nasty flat spot. My mate altered it for me. Brilliant job Peter!

-- Andy Halewoodworker. You can't finish if you don't finish. So finish it, because finish is everything.



6 comments so far

View TheOldTimer's profile

TheOldTimer

221 posts in 1681 days


#1 posted 865 days ago

Loving it, keep them coming

-- TheOldTimer,Chandler Arizona

View Philip's profile

Philip

1073 posts in 1134 days


#2 posted 865 days ago

That is great, now we just need to see it in action! If you heat it up in the oven and let it cool doesn’t that de-temper the blade? I understood you needed to heat it up and then cool it rapidly as in the last operation in the video.

-- If you can dream it, I can do it!

View canadianchips's profile

canadianchips

1831 posts in 1592 days


#3 posted 865 days ago

Nice video.
Ah that straw colored glow going into the quench pot. What does he use to quench.? My Grandpa taught me to use waste oil. Its smelly. Later my brother in law used salty water.

-- "My mission in life - make everyone smile !"

View andyboy's profile

andyboy

483 posts in 1868 days


#4 posted 865 days ago

I think it is cherry red then quench in waste oil. Then sand clean and reheat to a straw colour or color for you American’s , and remove from heat and allow to cool naturally. Ive ‘e been wrong before so I will ask the expert over the nec couple of days.

-- Andy Halewoodworker. You can't finish if you don't finish. So finish it, because finish is everything.

View daltxguy's profile

daltxguy

1373 posts in 2509 days


#5 posted 864 days ago

Awesome – handy to have a torch like that for heating up.

Actually, Andy, when you get to the straw color ( or whatever color you pick as your end point), then it needs to be immediately quenched to stop it from tempering any more. A slow cooling will detemper it ( or maybe the correct terminology is that it will temper it too much) Basically you want to freeze it and stop the process when it gets to the desired color. So, I agree with Philip’s comment above.

The first step: cherry red, then quenching is the hardening ( in the video when he took it out and almost dropped it – if he had, your inshave would have shattered!)
The next step – heating until it changes to a <pick> color, then quenching is the tempering – this dials back the hardening so it isn’t so brittle and you can still sharpen it with a file but still holds and maintains an edge for cutting.

-- If you can't joint it, bead it!

View Philip's profile

Philip

1073 posts in 1134 days


#6 posted 863 days ago

Interesting Steve, I was tempted to hack up some old table saw blades and make tools ‘till I realized the pain in the neck that would be…maybe I’ll try it some day…Now we need to see a seat hollowed out

-- If you can dream it, I can do it!

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