Spring welding
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The spring at 65mn has broken at the weld site – how to fix it? Is heat treatment after welding required, and what are the temperature and time? Thank you all for your help.
Spring steel is a type of high-carbon steel; it requires preheating before welding and slow cooling after welding. As for tempering treatment, medium-temperature tempering (300–500°C) can be considered; look up the required holding time online, as I’m not very familiar with heat treatment processes