need help with knife blade

[S.Hartzell]

greetings all i am trying to engrav on a knife blade 440 steel cant put a scrach on it how do i take the hardness out so i can engrav on it

 

[vanknife]

My friend you will have to anneal the blade then engrave and then heat treat the blade again, I don’t have the right temp settings for annealing but it should be in the region of 820 deg "C" keep it there for about an hour and switch of the heat source and let it cool down over night and if it is still in the black heat condition let it cool down for a couple more hours until you can touch it by hand. Personally I would not do it for various reasons. if you would want more info don't hesitate to ask.

Cheers

"VAN"

 

[S.Hartzell]

van. thanks a lot ihave wood stoves for my heet source not to worried if i trash this blad im using it as a sample thanks for your reply

 

[Dmitriy Pavlov]

I would advise to put and cover the blade with ashes before you will be anneal it

 

[monk]

blade engraving

life is short. don't do that take your sweetie to a movie or somethin !

 

[ddushane]

Mr. Hartzell, You're going to have to get it to 1650 and hold it for a couple of hours, then turn your oven off and let it slow cool. Check out this link for the Crucible Data Sheet for the steel, Good luck, Dwayne

http://www.crucibleservice.com/eselector/prodbyapp/stainless/cru440cs.html

 

[sam]

My advice is to avoid blade engraving, annealed or not. I can't do my best work on miserably hard materials.

 

[S.Hartzell]

dwyane thank you for your responce the attached file is very informative iwill save this for my file but sam is right and iwill redesigen the knife to engrave the handle only the quantity thay are asking for will not work if i have to go through all that thanks s.hartzell

 

[S.Hartzell]

Dwayne thank you for your response the site that you attached is helpfully in allot of ways i will save it for my file and take Sam's advice and design something defrint... thanks s.Hartzell