Re: [MV] Welding M37 leaf springs?

From: Dave Cole (DavidCole@tk7.net)
Date: Fri Nov 01 2002 - 08:22:41 PST


I would really not recommend welding springs. It might be possible and it might last for a while, but it will surely create stress risers due to variation of the weld
metal to the spring base metal and the fact that the springs temper has been altered in the weld area. Those create fatigue cracks down the road.

A broken spring could put you into an abutment or an oncoming car or Semi and that could make for a very bad day. I would install a used spring before I
welded a old one up.

Dave

>>>>>>>>>>>>>>>>>>>>

11/1/2002 9:17:35 PM, myrddin7@juno.com wrote:

>to adress the question;can you weld leaf springs and will they hold up?if
>you are a master welder,and have the spring re heat treated you may have
>it hold up.in the world of large trucks where i work they go to a
>specialist and replace all of the leaves .as i have used leaf spring
>steel for tools and knife blades,one of the things you must look out for
>is cracks and stress fractures in the leaves.i have made some nice tools
>and cutting itens but you loose about 50 percent of the raw steel you
>pick through.this stuff just wears out.if you have a truck spring repair
>shop near you take an example of the spring bundle to then and get a
>price on ordering new leaves.as an example i have to replace the rear
>springs in my wifes f 150.it will cost about 180 us to get two new sets
>of springs with an adittional leaf for more load carying.this is from
>peters springs in baltimore city,md.they do all of the dump trucks and a
>large number of tractor trailers.i would say that weldin is questionable
>at bes,and if it fails while driving it would be bad.mike power.
>
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