My First Post...and Question

gds

Joined
Aug 7, 2010
Messages
11
This site has been a remarkable resource for me as a new knife maker. I must confess to spending a great deal of time studying and trying to learn as much as possible from the cumulative experience of all of you out there. I would like to start by extending a "thank you" to all who are responsible for the upkeep of this site.

This is my first post. Why now? Well...for the most part I have been making knives for about a year and manage to make a new one every couple of weeks. I have been slowly accumulating tools and in the past have used a small forge to heat treat my blades. I have made all of my blades out of o1. I know that you experienced knife makers are probably going to cringe at that statement recognizing the need for a more controlled soak time and precise temperature regulation than what is afforded by a simple forge for o1. For the most part my crude and less than analytical methods for bringing the o1 up to critical and then soaking it must have somehow worked because the knives I made have definitely had a practical utility and have held up reasonably under practical conditions. I recognize, however, that such crude methods of heat treating are subject to inconsistencies in reproducibility as well as performance. So after months of making knives and being haunted by the posts of you experienced knifemakers like Mr. Cashen I decided that I was going to purchase a knife kiln. I have a Paragon KM24D with 2350 F elements.

My question centers upon quenching. This is the one weak link in my heat treating process. While I am happy to say I can ramp up to critical and hold within a few degrees for a 15 minute soak I am falling short of optimum (or at least I think I am) when it comes to quenching. I quenched the first blade I made of o1(from the new kiln) in Canola oil which I brought to about 150F. I have read posts of using Canola on other less technical steels. So my questions are as follows:

Is it ok to use on Canola on o1?
Does o1 require a medium or fast oil?
I have read many posts on commercial quenchants which I will one day purchase. Any suggestions specific to o1?
Commercial quenchants seem difficult to find. Is there a suitable substitute that I could purchase in a more "generic" type of store?

I have searched much of the forum attempting to get these questions answered specific to 01 steel....if i have missed a thread that answers these questions I apologize. Kindly direct me toward it.

Thanks :o

Gary
 
I can't help you with your questions, someone much more experienced will chime in soon.

But I do want to say welcome! I see this is your first annual post!


-Xander

Oh yeah, no one will believe you even sharpened a pencil unless you post pics! Let's see what ya have been making!
 
Thanks for the help guys. Just today I found a small company that does heat treating within 15 minutes of my home. I took my blade and had it hardness tested. It had a Rockwell Hardness of 62 ! I was very pleased and hoped that it would fall within that range. So apparently the heat treating process including the Canola quench is going to be ok. I soaked the blade for 15 minutes at 1500 and quenched in 150 degree canola oil. I then tempered at 400 for 90 minutes and a second time at 400 for 60 minutes. I plan to continue to work with o1 for a long time as I find this a nice steel to work with my less than optimum tools. In addition I like the idea of being able to hone up the blade in the field. Now that I have established a fixed process I will continue to repeat the same hardening and tempering process. Eventually I will purchase some of the 11 second quench oil that you mentioned Stan ...thanks!

Gary
 
Back
Top