Did I smoke it?

Justin Presson

Justin Presson

Well-Known Member
I was doing the finishing grind on this knife and i burnt the tip(well I assume I did by the coloring

Now what do I do is it junk?

Thanks for any help
Justin
5ddd71b0e88c29202993c7a08b7c0585.jpg
 
You can grind away the tip and reshape it but the straw color looks about that I get out of the oven when I temper it.

Doug
 
Depending on steel.
In fact this colour is clearly in the tempering range , so the tip is now " less prone to break".....in theory.
with file steel you may have a remarkable loss on hardness but with comon tool steel like o1 I think nothing happened and with high alloy like stainless you have to keep it on that temperature 2 hours to lower the hardness!!
so thats to less to say that its crap and IF it happened that it is real soft on the tip than take it to the killn and harden it again.
 
Usually unless you went to far I have found that color is on surface only. That usually means its still OK. Its when the color goes all the way through the tip, its burnt!


If I am worried about it being burnt, I will sand it with some wet/dry high grit, automotive paper and see if I can cut through the color, if it cuts through the color I know I just warmed it enough to make it color but if I work on it with the wet/dry and I don't appear to be cutting the color I know I have goofed and will have to grind off enough to remove the burnt tip!

Tips are on of the easiest things to scorch as when the heat of the grind hits it, there is no place left for it too go. Cool often when getting down to he last few passes!
I would almost bet your OK on that one, when the color goes blue/black it usually ain't even worth checking. Brown/gold is usually OK.
 
Thanks guys. It's 01 steel.
Your right C Craft It don't take long to heat that tip up i thought I was good and was dunking each pass but still got it.
 
Put the tip against a piece of steel and put a little pressure on it. If it rolls then you'll need to grind that off and re-profile the tip. If it doesn't roll you're fine. From what I can tell from the color it looks like it will be fine.
Heck, the tip can always be re-profiled. I re-profile tips quite often for those people who believe that knives make good screwdrivers and prybars.
 
You must log in or register to reply here.
Back
Top