Convex edges are not stronger than v edge

ok

 

This is going to be fun.

 

Here I was thinking I was somewhat intelligent. This is way beyond me...

 

That is the whole point of a convex edge: to get better cutting with a V-edge, you to go to a smaller angle, and thus a weaker edge, than a convex edge.

 

Your construction is unrealistic.
In your first figure you drew the flat grind outside of the convex, but could have drawn it inside, meeting only at the edge and the spine.
Beginning the grind, in practice you have a fixed thickness of stock. You start by flat grinding. At some stage you make a choice. You can convex to a zero edge, or continue flat grinding until close to zero, but then usually put in a secondary bevel, which you didn't consider.

 

Wrong.

@marcinek

 

Lol ...

 

So you get better performance from a knife with less steel, if that knife is convex ground? Sounds like that knife is stronger.

It's hard to tell, because you never really define "Strong"

 

I don't think your little lines are right. I'm not a maths expert, but I used to date a teacher.

 

Take your first graph and zoom all the way in, centered on the origin of the Cartesian plane. It will make sense then.

 

...now you are just making things up...

 

I was going to say.....nah forget it,you can believe whatever you want

 

You have chosen to draw a convex grind that is thinner at every point than the V grind you have chosen to draw, thus demonstrating the possibility that one convex grind could be weaker than one V grind at all points. However, that is not how people in the real world do convex grinds and V grinds.

 

Fake news

 

I was going to say "frustrating".

 

A Hamaguri grind is full height convex, as opposed to a convex grind which is in relation to the edge.


I just wanted to type Hamaguri.


Also, the OP would only be correct if the flat grind was at an incredibly high angle, which is not great for knives.

 

“Look gaiz! A splitting maul is stronger than a convex ground knife”.

 

A swing and a miss. I’m quite good at math and physics (masters in mechanical engineering).

This explanation makes very little sense.