10-30-2018, 06:01 PM
(This post was last modified: 10-31-2018, 07:26 PM by KnifeGrinders.)
One has to interpret the grinding speed and the workpiece feed rate in their experiments to pulling the knife blade across the belt on his belt grinder, to ensure the sub 200C heating.
If I read their studies right, not to overheat the knife edge apex on a 7-8" wheel on a full speed grinder, one has to pull the blade at a feed rate of approx 10-20 cm per 1 second for 5-micron grind.
E.g. the blade feed rate not to overheat the edge on 10" paper wheels on a half-speed buffer is not the same as for your belt grinders.
For a given grinding/honing speed there is a certain safe feed rate, and if you pull the blade slower than that across your belt or wheel, the friction becomes detrimental.
If I read their studies right, not to overheat the knife edge apex on a 7-8" wheel on a full speed grinder, one has to pull the blade at a feed rate of approx 10-20 cm per 1 second for 5-micron grind.
E.g. the blade feed rate not to overheat the edge on 10" paper wheels on a half-speed buffer is not the same as for your belt grinders.
For a given grinding/honing speed there is a certain safe feed rate, and if you pull the blade slower than that across your belt or wheel, the friction becomes detrimental.
http://knifeGrinders.com.au