Thread Rating:
  • 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5
How I use my sharpness tester to improve sharpening
#3
Grepper, knowing your interest in toothy edges - here are my observations for paper wheels.

The best deburring sequence preserving those microserrations is:
Having set the edge on a grit #1000 stone or CBN wheel, straight to 0.5 micron diamond paste on a paper wheel at +0.4 degree.
E.g. if the edge was set at 15 degrees, hone at 15.4
2-3 passes across the paper wheel usually suffice, but if not, I continue till deburred completely.
Averaged BESS score 85.

The next best is after the grit #1000 stone or CBN, a paper wheel with 5 micron diamond paste at +0.4 angle (15.4 degrees) twice.
Averaged BESS score 101.
My USB microscope shows the microserrations look entirely intact after 0.5 micron diamonds, but smoothed out after the 5 micron.

I haven't tried that on a Tormek leather wheel, but can tell that +0.4 degree is about 3 digits on the US micro-adjust.

Compared to this "high-angle" honing, honing at the exact edge angle with 0.5 micron diamond paste doesn't deburr at all, as you could expect a priori.
And honing at the exact angle with 5 micron diamond paste twice averaged 107 BESS, deburred well, and smoothed away the teeth as I could see.
http://knifeGrinders.com.au
Reply


Messages In This Thread
RE: How I use my sharpness tester to improve sharpening - by KnifeGrinders - 10-28-2017, 07:50 PM

Forum Jump:


Users browsing this thread: 1 Guest(s)