Angle, thick, math...

[brasileiro]

Is there a mathematical proportion for the relation between sharpening angle and bevel thickness?
I mean, to keep the same cutting level if my knife have a 0,5mm bevel thickness should I sharp it on a determinate angle?
When I get a knife with 1mm bevel thickness should I shallow the bevel angle? For what dps?
I saw a light here: https://www.bladeforums.com/threads/insane-performance-boost-in-cutting-ability.1257278/
But I couldn’t find a relationship between thickness and angle.
Well, my English language is not too sharp.
Is it real significant or is my head frying? There are any other factors like blade steel or blade geometry?
Im not talking about micro bevel.
What are your thoughts? What are your experiences?

Thanks.

 

[bucketstove]

Is there a mathematical proportion for the relation between sharpening angle and bevel thickness?
I mean, to keep the same cutting level if my knife have a 0,5mm bevel thickness should I sharp it on a determinate angle?
When I get a knife with 1mm bevel thickness should I shallow the bevel angle? For what dps?
I saw a light here: https://www.bladeforums.com/threads/insane-performance-boost-in-cutting-ability.1257278/
But I couldn’t find a relationship between thickness and angle.
Well, my English language is not too sharp.
Is it real significant or is my head frying? There are any other factors like blade steel or blade geometry?
Im not talking about micro bevel.
What are your thoughts? What are your experiences?

Thanks.

Hi,
See the stuff/pictures/links I posted in https://www.bladeforums.com/threads/question-on-thinness.1436381/ ...

If you don't have calipers/micrometer,
a good way to tune an edge is lower angle to about 7degrees per side,
then do a couple hundred cuts,
examine the edge,
if you're seeing reflection (rolls/deformation),
sharpen again but increase the angle ,
and do another couple of hundred cuts,
examine the edge ...
repeat until you're not getting lots and lots of reflections/rolls,
but just slow wear/dulling

It works no matter the thickness of the blade;
its basically like making a knife ,
since most primary grind/blade grind/blade bevel
angles are 3-6 degrees per side
you start with a light duty paper cutter,
and increase angle (and thicken up edge) until its durable enough for your purpose.


I link the video here

If you have calipers/micrometer, and you're looking for actual edge thickness numbers for various uses, see this


Consider this image, the razor is from ~0.4mm ( ~0.016inch) thick stock at , a very durable edge ~8 degrees per side

Compare to this image that howto measure angles thickness with calipers

 

[brasileiro]

Hi,
See the stuff/pictures/links I posted in https://www.bladeforums.com/threads/question-on-thinness.1436381/ ...

If you don't have calipers/micrometer,
a good way to tune an edge is lower angle to about 7degrees per side,
then do a couple hundred cuts,
examine the edge,
if you're seeing reflection (rolls/deformation),
sharpen again but increase the angle ,
and do another couple of hundred cuts,
examine the edge ...
repeat until you're not getting lots and lots of reflections/rolls,
but just slow wear/dulling

It works no matter the thickness of the blade;
its basically like making a knife ,
since most primary grind/blade grind/blade bevel
angles are 3-6 degrees per side
you start with a light duty paper cutter,
and increase angle (and thicken up edge) until its durable enough for your purpose.


I link the video here

If you have calipers/micrometer, and you're looking for actual edge thickness numbers for various uses, see this


Consider this image, the razor is from ~0.4mm ( ~0.016inch) thick stock at , a very durable edge ~8 degrees per side

Compare to this image that howto measure angles thickness with calipers

Thank you very much.