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Making new springs? #4600246
12/10/17 10:15 PM
12/10/17 10:15 PM
Joined: Dec 2002
Posts: 42,088
New Jersey
JHZR2 Offline OP
JHZR2  Offline OP
Joined: Dec 2002
Posts: 42,088
New Jersey
Need to make a new spring for this:



A piece from an old mortise lock.

What's the best source/approach? Are there special methods for bending springs so they work properly?

Re: Making new springs? [Re: JHZR2] #4600255
12/10/17 10:25 PM
12/10/17 10:25 PM
Joined: Sep 2004
Posts: 7,530
Marshfield , MA
andyd Offline
andyd  Offline
Joined: Sep 2004
Posts: 7,530
Marshfield , MA
Go to the right flea mkt. Get an entire lock or a reproduction hardware site or McMaster Carr??


'16 Camry LE STP synth 0w20 and STP filter. the Fridge

1994 Ranger ,the Rat, 5w30 dino, STP filter

'16 Camry SE, Valvoline HM 0w20 and OEM filter
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Re: Making new springs? [Re: JHZR2] #4600268
12/10/17 10:43 PM
12/10/17 10:43 PM
Joined: Jun 2003
Posts: 17,368
Deplorable in apple valley, ca
Chris142 Offline
Chris142  Offline
Joined: Jun 2003
Posts: 17,368
Deplorable in apple valley, ca
How big? The ignition points i put in my tractor looked like that.


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Re: Making new springs? [Re: JHZR2] #4600286
12/10/17 11:29 PM
12/10/17 11:29 PM
Joined: Dec 2016
Posts: 6,259
Waco, TX
Linctex Offline
Linctex  Offline
Joined: Dec 2016
Posts: 6,259
Waco, TX
If you cannot find a reproduction,

you can get the correct type of steel, anneal it (soften)

cut, shape, form......

Hardening it to the correct temp is very, very tricky to do on a part that small.


"The evidence demands a verdict".
(Re:VOA)"it's nearly impossible to actually know the particular additives that are in there at what concentrations."
Re: Making new springs? [Re: JHZR2] #4600423
12/11/17 07:48 AM
12/11/17 07:48 AM
Joined: Dec 2002
Posts: 42,088
New Jersey
JHZR2 Offline OP
JHZR2  Offline OP
Joined: Dec 2002
Posts: 42,088
New Jersey
Fortunately it's a non critical part, just want it right...

What is the right type of stee?

I'm not interested in a reproduction lock set, this one works perfect aside from this spring. Something else had fallen inside of the assembly, which can be understood after nearly 100 years...

Re: Making new springs? [Re: JHZR2] #4600443
12/11/17 08:25 AM
12/11/17 08:25 AM
Joined: Nov 2006
Posts: 19,941
MA, Mittelfranken.de
Trav Offline
Trav  Offline
Joined: Nov 2006
Posts: 19,941
MA, Mittelfranken.de
Start off with this..

https://www.ebay.com/itm/FLAT-SPRING-STEEL-ASSORTMENT-MORTISE-LOCK-REPAIR/401307926188?hash=item5d6fd0feac:g:NfkAAOSwPcVVgecN


ASE L1, Master. Deutsch Meisterbrief.
Re: Making new springs? [Re: JHZR2] #4600445
12/11/17 08:26 AM
12/11/17 08:26 AM
Joined: Jan 2015
Posts: 613
missouri
ragtoplvr Offline
ragtoplvr  Offline
Joined: Jan 2015
Posts: 613
missouri
You can order music wire from McMaster Carr if you think a round spring can work. It can bend in hard condition. The Spot weld will be more difficult unless you have a spot welder. You could bend a 90 on the spring and then use some well cured JB weld it might work.

Rod

Re: Making new springs? [Re: JHZR2] #4600462
12/11/17 08:44 AM
12/11/17 08:44 AM
Joined: Jan 2015
Posts: 613
missouri
ragtoplvr Offline
ragtoplvr  Offline
Joined: Jan 2015
Posts: 613
missouri
You can order music wire from McMaster Carr if you think a round spring can work. It can bend in hard condition. The Spot weld will be more difficult unless you have a spot welder. You could bend a 90 on the spring, put in in a drilled hole and then use some well cured JB weld it might work.

Rod

Last edited by ragtoplvr; 12/11/17 08:44 AM.
Re: Making new springs? [Re: JHZR2] #4600547
12/11/17 11:26 AM
12/11/17 11:26 AM
Joined: Jan 2011
Posts: 2,944
PV Az
AZjeff Offline
AZjeff  Offline
Joined: Jan 2011
Posts: 2,944
PV Az
Our Ace Hardware has music/piano wire in 3 foot lengths & different thicknesses.


86 Samurai 1.3 leftovers
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Re: Making new springs? [Re: Trav] #4600560
12/11/17 11:42 AM
12/11/17 11:42 AM
Joined: Dec 2016
Posts: 6,259
Waco, TX
Linctex Offline
Linctex  Offline
Joined: Dec 2016
Posts: 6,259
Waco, TX
Originally Posted By: Trav


Enough there to do a LOT of locks!

Take the one you need, sell the rest again......


"The evidence demands a verdict".
(Re:VOA)"it's nearly impossible to actually know the particular additives that are in there at what concentrations."
Re: Making new springs? [Re: ragtoplvr] #4600566
12/11/17 11:51 AM
12/11/17 11:51 AM
Joined: Dec 2002
Posts: 42,088
New Jersey
JHZR2 Offline OP
JHZR2  Offline OP
Joined: Dec 2002
Posts: 42,088
New Jersey
Originally Posted By: ragtoplvr
You can order music wire from McMaster Carr if you think a round spring can work. It can bend in hard condition. The Spot weld will be more difficult unless you have a spot welder. You could bend a 90 on the spring and then use some well cured JB weld it might work.

Rod


Fortunately it is not a spot weld, just a punched spot to either index the spring or help it stay.

Id like to learn how to properly shape and craft spring steel. Not sure how useful of a skill it will be for me, but it will be fun.

Re: Making new springs? [Re: JHZR2] #4600824
12/11/17 04:28 PM
12/11/17 04:28 PM
Joined: Jun 2002
Posts: 12,522
The Motor City
Kestas Offline
Kestas  Offline
Joined: Jun 2002
Posts: 12,522
The Motor City
Making springs can be difficult. Spring steel is not very ductile. I believe they are formed first, then heat treated to make them "springy." It's called bainitic hardening. That's why spring metal snaps when you try to form them further.

Maybe you can use a metal tube to "sleeve" both ends together.


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