Hard Spring Steel Wire Joint Welding

Usually Spring steels are high carbin steel and hence are difficult to weld.

replace the spring instead of trying to repair.

UD15

its not a repair of spring , we are planning for high production of spring steel wire ring used for automobile component , we need to weld 50,000 pieces per day .

Are you tempering after welding? The heat from welding is no doubt hardening.

no we are not tempering it , instead we tried it dipping into lime powder instantly after welding joint when red hot

Have you tried tempering after welding? Do you have an oven?

If I recall correctly, the metal incorporated into the weld puddle will require a very long soak time... and then will still not be a pliant/flexible as subject metal.

Your quench in powder, is that helping at all?

I'm not a metallurgist, but I believe you will need to temper the heat affected zone. If the base material was not already spring-tempered, you might get away with your current process.

The alternative is to weld the pieces BEFORE hardening & spring-tempering.