[TheForge] Oregon fusion blades

[Peter Fels & Phoebe Palmer]

I initially thought , either case hardening or a bi-metal blade like a 
bandsaw blade...but they say the process is after the tempering..some 
sort of hard plating wouldn't survive a sharpening..or maybe, like case 
hardened knives the harder surface  would then be self sharpening.
Agree, the knife crazies would be most apt to know.

Keziah's Forge wrote:
> Hardfacing, maybe?
> 
> 
> ----- Original Message ----- 
> From: "Peter Fels & Phoebe Palmer" <artgawk at thegrid.net>
> To: "Blacksmithing List Sponsored by ABANA" <theforge at mailman.qth.net>
> Sent: Sunday, August 09, 2009 1:54 PM
> Subject: Re: [TheForge] Oregon fusion blades
> 
> 
>> Hi Don:
>> It says they apply the " fusion" process after tempering...affects
>> molecular structure....the only thing i can think of is cryogenics.
>>
>> PlumDon at aol.com wrote:
>>> Anyone have an idea as to what the "fusion"  process is that Oregon is
>>> using on their lawnmower blades.
>>>
>>> I have them  on my 60" Cadet Tank M60 and they do seem to be holding up
>>> well. Typically they  claim their blades are tempered to R50 but edge is
>>> farther hardened by this  "fusion" process. They are definitely more 
>>> difficult to
>>> harden.
>>>
>>> http://pressroom.oregonchain.com/pressreleases/PR_02162005.pdf
>>>
>>> I'm  wondering if the process is being used elsewhere.
>>>
>>> Don  Plummer
>>> Phoenixville, PA
>>>
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