How do I normalize a SS316 weldment?

swarf_rat · Jul 18, 2005

I have tig welded up a narrow box section (boat part) out of 3/8 plate. In spite of my best efforts at controlling the distortion, it acquired a small amount of character in the welding. I would like to press it straight again, and normalizing seems like a good idea in any case before it is permanently bonded into the carbon part with Plexus.

How do I normalize it? Or should I just press it straight an forget the rest?

swarf_rat · Jul 18, 2005

I have tig welded up a narrow box section (boat part) out of 3/8 plate. In spite of my best efforts at controlling the distortion, it acquired a small amount of character in the welding. I would like to press it straight again, and normalizing seems like a good idea in any case before it is permanently bonded into the carbon part with Plexus.

How do I normalize it? Or should I just press it straight an forget the rest?

Forrest Addy · Jul 18, 2005

Forget it and straighten it. 316 is an austenetic stainless. It will stress relief but you can expect no changes in properties by normalizing.

Straighten it out and forget it unless it's long and skinny and you're concerned with it pulling free of its embedment.

Forrest Addy · Jul 18, 2005

Forget it and straighten it. 316 is an austenetic stainless. It will stress relief but you can expect no changes in properties by normalizing.

Straighten it out and forget it unless it's long and skinny and you're concerned with it pulling free of its embedment.

swarf_rat · Jul 18, 2005

Forrest,

I guess stress relief is what I was thinking. It is a steering head fixture that will be glued into the carbon tube rudderpost, and to which the steering gear tiller arm will be attached. It is 1.75 x 3.75 x 12 and imbeds about 7 inches. If not normalized, will it worm around as it stress relieves itself over time? We are leaving about 1/16 all around for the Plexus, about the minimum they recommend. The thing has about a .050 bow to it. By itself, that isn't going to cause problems, but it makes it hard to clamp to do all the machining I need to do to it.

Thanks for your thoughts.

swarf_rat · Jul 18, 2005

Forrest,

I guess stress relief is what I was thinking. It is a steering head fixture that will be glued into the carbon tube rudderpost, and to which the steering gear tiller arm will be attached. It is 1.75 x 3.75 x 12 and imbeds about 7 inches. If not normalized, will it worm around as it stress relieves itself over time? We are leaving about 1/16 all around for the Plexus, about the minimum they recommend. The thing has about a .050 bow to it. By itself, that isn't going to cause problems, but it makes it hard to clamp to do all the machining I need to do to it.

Thanks for your thoughts.

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How do I normalize a SS316 weldment?

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