Author Topic: Simple and cheap replacement punch for chain breakers  (Read 963 times)

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Offline Tzed250

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When you harden carbon steel in a quench it is actually surface hardening. The core of the part stays soft. Water is used to make the hardest surface as the quickness of the cooling determines how much carbon is brought to the surface. Oil cools a little more slowly and is better for a part that needs to be a little tougher. When you need something to be wear resistant water hardened 1045 is hard to beat. Fairly easy to get Rockwell 60 on the surface. The most exotic hardening steel I have worked with is ASTM 52100 high carbon chromium bearing steel. Water hardens to over 65 Rockwell.

Offline 660magnum

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+1 on the heat treating
We should share what we know... someone may learn...
That knowledge can live after us... and that "Pays It Forward".
Be all that you can be . . .

Offline Cut4fun .

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I have uploaded a video on YouTube this is the link:
Joe

I used these homemade ones Joe made for me yesterday and they seemed to work a lot better then the ones baileys sales us that are so brittle and break easily. 

Heck I heard baileys dont even sale the ones for the breaker set I bought from them anymore   :o >:(. So this could be a blessing in disguise. 

Thanks for getting me these all away around the world to try out. 

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Offline 3000 FPS

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Re: Simple and cheap replacement punch for chain breakers
« Reply #13 on: November 14, 2012, 05:34:39 pm »
Well I took your advice and made my own punch today.   I used a broken piece from a tap that was 1/8".  it worked great and seemed to have better strenght than the baileys.   Thanks for the tip.
PP 505, 475, 445.

Offline sharkey

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Re: Simple and cheap replacement punch for chain breakers
« Reply #14 on: November 15, 2012, 06:33:24 pm »
Joe,
This is a great idea.  Thank you for posting the video because that explains it better than ever. 

 

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