[TheForge] Oregon fusion blades

Peter Fels & Phoebe Palmer artgawk at thegrid.net
Tue Aug 11 14:07:41 EDT 2009


Maybe they are using CERN as it isn't doing what it was planned to do.
I suppose for the application they wouldn't need much penetration.

James Binnion wrote:
> Particle accelerator :-) But seriously I don't know how they will get  
> much tungsten carbide diffusion into the steel. There are ways to  
> enhance surfaces but the penetration depth is not all that great.
> 
> James Binnion
> jbin at well.com
> 
> 
> 
> On Aug 10, 2009, at 10:33 PM, Peter Fels & Phoebe Palmer wrote:
> 
>> Hard to imagine how that could be done, after tempering, and still get
>> significant diffusion of the carbide into the steel.
>>
>> xlch58 at swbell.net wrote:
>>> They state that they are adding Tungsten Carbide to the blade, but  
>>> the
>>> process results in the TC being diffused in the blade in the cutting
>>> area rather than just deposited on the surface, such that  
>>> sharpening the
>>> blade does not abrade it away, just reveals more.   I searched the
>>> patents, but can find nothing.  They (Oregon Cutting Systems) are a
>>> wholly owned subsidiary of Blount that does have a lot of patents for
>>> cutting (assignee Blount)  but I can find nothing that seems to match
>>> this.   It may be they are a licensee of the technology, in which  
>>> case
>>> it will be harder to find it, since there is nothing to hang a  
>>> search on.
>>>
>>> Charles
>>>
>>> James Binnion wrote:
>>>> Except they say they are not adding a layer to the edge in the  
>>>> blurb.
>>>> The quote is
>>>>
>>>>
>>>>
>>>>> The manufacture of these blades includes an exclusive electrofusion
>>>>> process that
>>>>> makes the cutting edges extra hard and tough. The process does not
>>>>> add a layer to the blade, it
>>>>> alters the molecular structure of the steel and becomes an integral
>>>>> part of the blade along its
>>>>> cutting edge.
>>>>>
>>>> This almost sounds like some kind of ion implantation process but  
>>>> that
>>>> seems like a lot of money for just a lawnmower blade. Of course the
>>>> information comes from a press release that is full of weasel  
>>>> words so
>>>> who knows for sure. They claim to have a patent pending which should
>>>> be searchable on the USPTO database but you need to know something  
>>>> to
>>>> identify the inventor or patent owner or other info that would allow
>>>> you to find it.
>>>>
>>>>
>>>>
>>>> James Binnion
>>>> jbin at well.com
>>>>
>>>
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