Hollow grind vs flat/convex

[Gossman Knives]

Posum: I also had heard about blades sticking. I purchased some sides of some cows that came thru the plant for stew meat and were to be rendered to 1" pieces. I stuck cows in (through) the ribs, hind quarters, headed and did it all, no blade hung up. These blades were all convex grinds.

:thumbup:

I also agree with Dan Gray, there is no do all grind. A knifemaker needs to learn to do all grinds in order to satisfy a potential customer. Even though I prefer and want to be known for convex grinds, I will do hollows and flats if that is what the customer wants.
Scott

 

[Dan Gray]

with all respect, I still don't see the correlation between an I-beam and a hollow-ground blade. .

Dan I see it to a point..
I think some guys misunderstand the hollow grind.

take two pieces of the same size steel with the same blade profile
and hollow one and flat grind the other

then take the hollow ground one and flat grind it so the grind lines are at the same point as the Flat ground blade and see what you have left of your hollow you won't have much if any..
the hollow grind allows you to have the same ~ angle as the flat grind
on a narrower piece of steel.. therefore a lighter smaller blade
with the same width back bone an upper the flange if you will
I'm not saying it will help a LOT in strength but it's there to help
some-what it's the spine

I will add too,, ed's testing shows more steel is strongher, but we need to look at weight too,, it's like the spider web verses steel..