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Re: [MW:9581] Distortion Control in SS welding

By Materials & Welding
Dear Yusuf,

Stainless's Ni and Cr content make metal particularly sensitive to distortion, stainless steels have higher thermal expansion and lower thermal conductivity: these are the main reasons contributing to unacceptable distortion.

Due to lower currents employed, GTAW would be difficult to handle, so you can try Mechanized Pulsed GMAW in order to avoid Burn through and reduce Heat Input, Other precautions include proper fixturing, Good cleaning and preparation are always important.

Tack welding should be provided at close intervals but with a proper sequence that will maintain alignment,The start and stop of each weld and the tack welds should be ground to eliminate possible flaws in those places.


The conical electrode tip can be ground with different apex angles. A narrow angle of about 15 to 30 degrees tends to produce a relatively wide bead with shallow penetration. A larger angle of 60 to 75 degrees would give a narrow bead with increased penetration.



Regards
Manpreet Singh



> > Dear All,
>
> > Please suggest me any information related to distortion control in
> > Stainless Steel welding. usually while welding lower thickness (bet 4 to 8
> > mm).
>
> > Thanks in advance.
>
> > Regards.
> > Yusufkhan.Pathan
> > 8008804165
>
> > --
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> > The views expressed/exchnaged in this group are members personel views and
> > meant for educational purposes only, Users must take their own decisions
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>
> --
> Thanks  & Best Regards,
>
> Suresh
>
> Mobile No: 91-92 92 905 905

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The views expressed/exchnaged in this group are members personel views and meant for educational purposes only, Users must take their own decisions w.r.t. applicable code/standard/contract documents.

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