For you slip joint makers

Nowicki

Nowicki

Joined
Jan 18, 2003
Messages
1,117
Where is a good source for spring steel for the springs in slipies. I just forged one from some 5160 round stock and it was a pain to get flat and parallel. I was thinking 3/16 flat stock. Any sugestions?

Thanks
Larry
 
Larry, I forge my stock (W1,W2,1086 or damascus) down to around 1/8'' then cut my blade and spring out and surfacegrind them together. Years ago I made lots of slips out of precison ground 01 and cut spring and blade out of same stock, just gave the spring a spring temper. Have also used 15N20 for springs in smaller slips. Kelly Couples should have what you need.
 
Thanks for the info.
I might have some O1 stock around here somewhere. No surface grinder! If I cannot find it I'll try Kelly.

Larry
 
Larry, if you need I can send you a piece of 1084 or something similar the thickness you need to cut a few springs out of. Just let me know.
 
That would be great. I'm getting together the parts to build a rolling mill so I can make some flat stock. It should be good for damascus too. This would give me a good start into slipies having the spring already flat and parallel.

Thanks
Larry

E-mail sent.
 
sunfishman said:
Larry, I forge my stock (W1,W2,1086 or damascus) down to around 1/8'' then cut my blade and spring out and surfacegrind them together. Years ago I made lots of slips out of precison ground 01 and cut spring and blade out of same stock, just gave the spring a spring temper. Have also used 15N20 for springs in smaller slips. Kelly Couples should have what you need.
Click to expand...

What temp did you draw to get the spring tnmpre?
 
Nowicki said:
That would be great. I'm getting together the parts to build a rolling mill so I can make some flat stock. It should be good for damascus too. This would give me a good start into slipies having the spring already flat and parallel.

Thanks
Larry

E-mail sent.
Click to expand...

You will love the rolling mill Larry. With a little practice and heat control you will also be putting distal tapers in your blades with ease.
 
I was just about to post the same question that Nowicki asked about the draw temp of the spring for the slip joint, but if I can find the answer on this thread, that would be great. Thanks.
 
I use a torch to heat treat my springs, I bring them up to nonmagnetic being very careful not to overheat then quench in oil. I also temper with a torch to a even blue color, I do the temper twice. this has worked for me over the years with hundreds of slips and no broken springs. If I were to use my oven I would think the temp would be aroung 650 -700 degs and maybe 750 for 01. With a tourch I can leave the tip of the spring a bit harder were I hold it with vice-grips while tempering, the end of the spring takes a beating when the blade is opened over time. Hope this helps.
 
The rolling mill will work great for getting your stock flat and the thinkness you need but the best thing I ever did for my folder making was getting an old surface grinder, I wished I had found one sooner as I made quite a few folders without one which was a pain.
 
I'll use the tourch for drawing. I like the idea of harder at the tip. As for the surface grinder I'll put it on my tools to get list. For now I'll have to do it the hard way.

Larry
 
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