saw blade

atakach

atakach

Joined
Jan 17, 2008
Messages
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Was wondering if any one has ever experienced working with this type blade. my neighbor give it to me. he works in a foundry, and said that they use it to cut metal, I'm assuming bronze, and copper,brass etc. the blade has aggressive teeth. almost like a circular saw blade only bigger. its prob 16'' or so round.

the thing is i tried to normalize then bring up to temp, and anneal. but the blade cracked (significantly just from from heat, when annealing. this blade is some hard stuff. even after trying to anneal a couple times. sorry i don't have no pics
 
What you most likely have is a cold cut blade.I use one at work myself.They are high speed steel and when miss used will shatter like glass.Really not suitable for us bladesmiths.
On the other hand larger cold cut blades with carbide or high speed steel bits riveted to the blade make decent knives once you drive out the rivets and remove the teeth.These blades are close to 48" in diameter.A blade manufacturer told me the blade bodies were vanadium steel.Actually got decent hamon with the stuff.
 
I'll add to what Glenn said.

Yup, that is a cold saw blade, it is most likely M2 High Speed Steel, and it can cut steel. A 16" cold saw blade is about a $200-$300 blade. The steel and heat treat are excellent and can make a very good knife (thin precision slicer type blade) with excellent wear resistance. If you ever wanted a 65 HRC cutter, this is good stuff.

The bad news is the heat treat of these steels is beyond most home metal heads.

The good news is they will withstand 1000 F, so you can grind them in their full hardened state with little risk of ruining the temper.

The bad news is it sounds like you got it a lot hotter than 1000 F, so while it may still be hard, I wouldn't trust it.

The steel can be annealed, the carbon can be spheroidized, you can reaustenitized hold and quench, but unfortunately you can't do it in a forge. Hell, I have an industrial (Lindbergh Blue) HT furnace, and I can't do it right either.
 
basically i need to can it then...........................no biggie, i appreciate the info,

thanks,
andrew
 
i made an ulu out of one. i had to use diamond and carbide cutters to work it. it took 2 - 60 grit belts to work down the bevel. you can see it posted at my website at this link
http://mysite.verizon.net/ress6fq6/id19.html. if you can get another one give it a try or even use the one you have if its still good.
 
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