Who knew it was that hot?

tryppyr

tryppyr

Joined
Feb 5, 2010
Messages
3,911
I was in the garage this morning working on another kitchen knife for my wife. This is to be a clone of her favorite slicer. Anyway, I have a brand new 36 grit belt on and I'm happily hogging away, dipping after every pass, as I am wont to do. I notice during the passes that some heat is being transferred to my left forefinger, which I use to keep the blade flat against the platen. It doesn't seem all that bad, so I basically ignore it. Because I use a lighter touch on the opposite side, I don't seem to feel any such pain on those passes.

Long story short, when I'm done with the grinding I notice that my left forefinger is red and sensitive. Kinda like a bad sunburn. I guess I'll pay more attention to the heat from now on.
 
It turns out, friction generates heat. Fire can do that, too. Be careful out there... you never know when physics is gonna sneak up ya.

:p
 
I get my thumbs & forefingers hot so often that they have really thick callouses on them from grinding.
 
I was in a similar situation the other day heat treating in the forge. I get plenty of dragons breath and was (admittedly stupidly) using a pair of needle nose pliers to hold the tang. Too short, of course, and noticed some heat, but I guess in my excitement, didn't really pay attention. Hurt pretty bad after quench... The next day I had (and still do have) blisters on the side of my index finger.

Between this and cutting my hand up pretty nicely in a bit of a hacksaw accident, I'm beginning to realize that I need to be much more careful.

So far making knives hurts!
 
Strig, I bet my hands look exactly like yours. I don't know how many times I've racked my knuckles on whatever it is I am hacksawing, or the work rest underneath it, or the clamp holding my work down. I can expect one or two new knuckle dusters every blank. You'd think one would learn after so many times......I'm pretty hard headed! Hard handed maybe?
 
Yup, exactly. It wasn't the saw that hurt, it was the resin flashing on the micarta that I slipped and hit.

Grabbed the camera and snapped this before they started to bleed.

nofIxMo.jpg


Slipped and hit the exact same place a little while later, but at least by then I had bandaid armor.

No pics of the blisters. :)
 
You must log in or register to reply here.
Back
Top