12-30-2017, 06:15 AM
(This post was last modified: 12-30-2017, 02:42 PM by KnifeGrinders.)
Mike, guys,
I know how such "scraper burr" forms, I've just had an aha moment:
this is a one-sided burr.
Burr like that is raised by repeated abrasion of one side of the blade;
or as an option grinding is done on both sides, but asymmetrically so that it covers the edge end on one side only.
As a result of platic deformation, the edge apex will bend on one side, and a thick burr will grow.
This burr will be several microns thick all the way from its base to the end.
Manufacturers sharpen these blades by overlapping grinding wheels, similar to Tru Hone - I bet the grinding wheels are not aligned.
I know how such "scraper burr" forms, I've just had an aha moment:
this is a one-sided burr.
Burr like that is raised by repeated abrasion of one side of the blade;
or as an option grinding is done on both sides, but asymmetrically so that it covers the edge end on one side only.
As a result of platic deformation, the edge apex will bend on one side, and a thick burr will grow.
This burr will be several microns thick all the way from its base to the end.
Manufacturers sharpen these blades by overlapping grinding wheels, similar to Tru Hone - I bet the grinding wheels are not aligned.
http://knifeGrinders.com.au