Questions to do with material and grinding

D

Dutchmichael

Joined
Apr 12, 2015
Messages
29
Hello,

I'm knew to the forum but have been looking over the site for some time now and its quite a wealth of information. I have never made a knife but am getting married this summer and would like to make some for my grooms men as gifts. I am a metal fabricator and have a good array of equipment to work with, but obviously no experience making knives nor working with the various types of steels involved. So I was hoping that this community might be able to help me answer a few questions ( or direct me to the answers ). The blade design will be very similar to Aaron Gough's Resolute 4 ( I want to say thank you Aaron for the very informative videos you make, you knives look great! )

I believe I have my choices narrowed down to A2 or CMP S35VN. I would like to choose one or the other but not both to save some money and to keep things simpler. I'm slightly leaning towards CMP S35VN for its stainless properties but the problem is I would like to have half a patina of black and the other half natural in color. Is there any nice way to patina CMP S35VN ( I realise I'm trying to rust stainless )? If so is there considerable pitting? If I use A2 and leave half of them without any finish how easily does it rust? Would someone need to be concerned that if they put a clean A2 steel knife away ( though not oiled ) for a year without use that it would have rusted in the meantime?

I plan on machining the profile on a Mill, it sounds like both should be suitable for machining?

My last question is to do with grinding, from what I understand you want to cut the primary bevel down to around 0.5mm at the cutting edge and then send it out to heat treat to prevent distortion ( please correct me if I'm wrong ). My question is once it is back from heat treating is the primary bevel brought down to a point and then the cutting edge ground in or do you leave it at around 0.5mm and then grind the edge in? Is there some sort of guideline based on material or otherwise as to how far out to come with the cutting edge grind?

I'm sure that this information is all out there but I can't seem to find it. Thank you in advance for your help!

Michael
 
Michael, first I'd like to say hello and welcome. Man from one newbie to another what your describing is a tall order but possible.

I'd like to offer a bit of advice and that would be before trying to do any knives for your groomsmen as gifts and out of something like S35V I'd highly recommend getting yourself some easy to work with 1084 and get a few under your belt before committing to multiple knives as gifts out of S35V. I'd even go as far as making a few of the profile your considering as gifts to get them perfected and work out the mistakes on those first then if you like what you've come up with then pull the trigger on some steel for gift knives. Like I said I'm very new but this is the path I'd take. Good luck and make sure to keep us posted.

Jay
 
Thanks Jay for taking the time to reply to my post, I agree its going to be a bit of a challenge but I'm hoping to make it happen. I plan on cheating a little bit by building a 72x2 grinder and making a jig for grinding. I plan on doing some test grinds in the next couple weeks on some steel blanks to see if I can get the blades into the correct profile. I'm assuming if I can do a good job in mild steel I should also be able to do it in more expensive steel though it may take longer to do ( but please correct me if I'm wrong ). Thanks again Jay, I hope your enjoying the learning process as much as I am and I'll definitely keep you posted!

M
 
Antlerhog said:
Michael, first I'd like to say hello and welcome. Man from one newbie to another what your describing is a tall order but possible.

I'd like to offer a bit of advice and that would be before trying to do any knives for your groomsmen as gifts and out of something like S35V I'd highly recommend getting yourself some easy to work with 1084 and get a few under your belt before committing to multiple knives as gifts out of S35V. I'd even go as far as making a few of the profile your considering as gifts to get them perfected and work out the mistakes on those first then if you like what you've come up with then pull the trigger on some steel for gift knives. Like I said I'm very new but this is the path I'd take. Good luck and make sure to keep us posted.

Jay
Click to expand...

Great advice.
 
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