[MW:2221] RE: 2153] RE: 2150] Re: Welding GI Sheets

For thin sheet welding ,use autogenous welding ( w/o filler  but to fuse the joint) with zero root gap

Care should be taken for proper  fixturing / clamping of the sheet

 

Hegde

 

From: Nimesh Chinoy - SigmaWeld [mailto:nchinoy@gmail.com]
Sent: Wednesday, May 20, 2009 3:35 PM
To: PB HEGDE; materials-welding@googlegroups.com
Subject: Re: 2153] RE: 2150] Re: Welding GI Sheets

 

We are trying to use automation in this case where it is difficult to use filler wire since the sheet is only 0.5mm and after welding the sheet needs to be formed (folded inside out) so deposition is not encoraged.

The welding length is only 15 to 20mm.

Any other suggestions.

On Tue, May 12, 2009 at 10:06 AM, PB HEGDE <hegde.pb@isgec.com> wrote:

Some time it is better to use ER 70S6 which has better deoxidizer

 

Hegde p.B.

ISGEC India

 

From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of Ravinder Sharma
Sent: Tuesday, May 12, 2009 9:17 AM
To: materials-welding@googlegroups.com; nchinoy@gmail.com
Subject: [MW:2153] RE: 2150] Re: Welding GI Sheets

 

 

Use pulsed TIG.

 

 

Ravinder

 

From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of PREM SHANKARDUTT NAUTIYAL
Sent: Monday, May 11, 2009 10:42 PM
To: nchinoy@gmail.com
Cc: materials-welding@googlegroups.com
Subject: [MW:2150] Re: Welding GI Sheets

 

Hi Nimesh

Are u using any filler wire ?

If yes then,trust you are using ER70S2 which is a good deoxidised wire.
Also i would suggest you grind the area to be welded i.e WEP prior to welding. We have welded GI pipes with same procedure by TIG successfully.

Regards

Prem S Nautiyal
Godrej,Mumbai.

On Mon, 11 May 2009 10:49:13 +0530 wrote
>Dear All,
>
>We are trying to weld Galvanised Sheets 0.5mm with GTAW. We find it
>difficult to weld and get some blow holes. Results with CRC instead of
>galvanised are much better.
>
>Is this because of the Zinc content ? Any suggestions ?
>
>Regards,
>
>--
>Nimesh S Chinoy
>
>>
>

PREM S NAUTIYAL

CELL : 9820313278

Error! Filename not specified.</Table

 

 

--
Nimesh S Chinoy

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