12-22-2017, 05:35 PM
(This post was last modified: 12-22-2017, 06:32 PM by scott.livesey.)
if your blade changes color, you are getting it too hot. if you are making sparks, you are getting it too hot. with a very fine edge, heating an area 0.1mm square enough to make a spark, you now have a spot of soft steel. if you read the forums, you hear stories of my xxx knife didn't cut well till the third or fourth major sharpening(all the overheated areas were ground away). I sharpen with stones after starting the edge with a wet belt sander. main reason is resharpening. how is the customer going to resharpen a belt ground edge?
on heating the edge, the best cure is prevention. wet grind at low speed, finish by hand.
I still don't get the fascination with Hitachi cutlery steel. I mean white is 1095 or W1. blue is similar to O7 or 1.2519. my biggest gripe is Hitachi refuses to export the steel to the states. yes I know I might get a little piece from Dictum or another European company and end up paying CPM-90V prices for 1095 in a fancy wrapper.
on heating the edge, the best cure is prevention. wet grind at low speed, finish by hand.
I still don't get the fascination with Hitachi cutlery steel. I mean white is 1095 or W1. blue is similar to O7 or 1.2519. my biggest gripe is Hitachi refuses to export the steel to the states. yes I know I might get a little piece from Dictum or another European company and end up paying CPM-90V prices for 1095 in a fancy wrapper.