Well, I sharpened the Izula back to about 40 degrees inclusive, but it didn't really seem to make much of a difference. Still dulled out after the first cut, if not during the first cut... Then it would still saw/shear through it, but not really cutting.
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Is denim very abrasive?
- Thread starter KennyB
- Start date
Jason B.
Knifemaker / Craftsman / Service Provider
- Joined
- Jun 13, 2007
- Messages
- 11,196
The angle change was to help resist deformation on the edge. You are still cutting a material dense with fibers using a basic carbon steel, it takes a steel with higher hardness or more alloy elements to have any vast improvement. It's simply a material that will dull a knives edge, just like canvas, nylon, or kevlar.
Hmm, never thought of the fibers part of the equation, so maybes that's why i didn't think it'd be as bad on the edge as it was. As far as how much cardboard... Probably about 75 feet through 1/8" corrugated stuff--breaking down moving boxes. Realistically though I guess the denim would be a LOT more material than the cardboard...
Where does wood fall into the whole equation? I was satisfied with such an acute angle when it would cut up various woods with little dulling or deformation, but it doesn't really seem to be a good basis of comparison for a lot of other materials.