[MW:1173] Re: 1150] SAW - For Single sided joint

IF code and specification permit try Cellulose Electrode for root and
followed by SAW.

I feel single bevel 45 degree V s not recommended groove for SAW. End
result of such groove may endup in having side wall lack of fusion.

Suggest to go ahead with J type groove atleast.

Regards

Paresh

On 9/22/08, Bathula Raghuram (Mumbai - PIPING) <R.Bathula@ticb.com> wrote:
> Why not GTAW+SAW? Full SAW may not give you full penetration + defect free
> in UT
>
> -----Original Message-----
> From: materials-welding@googlegroups.com
> [mailto:materials-welding@googlegroups.com]On Behalf Of PREM SHANKARDUTT
> NAUTIYAL
> Sent: Saturday, September 20, 2008 4:36 PM
> To: materials-welding@googlegroups.com
> Subject: [MW:1150] SAW - For Single sided joint
>
>
>
>
> Dear Friends
>
> We are trying to establish SAW for single sided joint. The base metal is
> SA516Gr.70. The joint is 25mm thick. The joint is a single bevel groove but
> joint with included angle of 45degree ( one member is vertical and there is
> bevel on other member).The final NDT is UT.
> Presently we are welding this joint with TIG+SMAW.The joint is circular
> hence ideal for SAW.
> Now we want to try to weld this single sided joint completely with SAW. This
> is for productivity improvement.
> Is it possible to weld this joint having no access from other side with SAW
> completely ?
> Can we keep zero gap, zero rootface, and achieve full penetration joint with
> SAW??
> If yes what should be the parameters, wire dia., etc.
> We dont want to use any ceramic backing.
> Can anyone suggest how to weld this joint completely with SAW.
> This is a development activity. Please share your experience...
>
> Regards
>
> Prem Nautiyal
>
>
> PREM S NAUTIYAL
> CELL : 9820313278
>
>
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