11-10-2018, 09:34 PM
Mr. Mark. When sharpening I have never, ever created any visible sparks. Not even close. Sure, I can create sparks with a lot of pressure, but that’s now what I do when doing basic, judicious sharpening. You are talking about much more pressure than basic sharpening, right?
Of course I understand that a tremendous amount to heat can be produced with a belt grinder:
https://www.youtube.com/watch?v=jy_guBBaUTU
It sure seems to me that the preponderance of evidence from my own person experience, Tempilaq testing by EOU, Mr. Mark and Mr. Tman indicates that heating during anything close to judicious light pressure sharpening is just not an issue.
I can understand why the idea of heating is considered. Everybody knows that using a grinder during sharpening can overheat metal, but that is if the tool in used incorrectly. Just about any tool used improperly can damage what is being worked on or the tool itself. But if the tool is used correctly it will produce beautiful results. You know, too much pressure with a floor sander can ruin or even burn a hardwood floor, but when used correctly restore the floor to its original lustrous beauty.
I think that is the key to this apparently erroneous idea of overheating during sharpening. We are sharpening an edge, not grinding the head off of a bolt.
Of course I understand that a tremendous amount to heat can be produced with a belt grinder:
https://www.youtube.com/watch?v=jy_guBBaUTU
It sure seems to me that the preponderance of evidence from my own person experience, Tempilaq testing by EOU, Mr. Mark and Mr. Tman indicates that heating during anything close to judicious light pressure sharpening is just not an issue.
I can understand why the idea of heating is considered. Everybody knows that using a grinder during sharpening can overheat metal, but that is if the tool in used incorrectly. Just about any tool used improperly can damage what is being worked on or the tool itself. But if the tool is used correctly it will produce beautiful results. You know, too much pressure with a floor sander can ruin or even burn a hardwood floor, but when used correctly restore the floor to its original lustrous beauty.
I think that is the key to this apparently erroneous idea of overheating during sharpening. We are sharpening an edge, not grinding the head off of a bolt.