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Re: [MW:27996] RE: 27990] Regarding Combined Welding Process WPS (GTAW+SMAW)

Thanks for the valuable information sir...

On Thu, 28 Jun 2018 at 3:40 PM, 'venkat chikkala' via Materials & Welding <materials-welding@googlegroups.com> wrote:
Dear,

WPS: SMAW Can be used for root weld( Refer QW 200.4). Check root penetration can be achieved or not  .

WQT: With backing strip or for both side weld SMAW can be used( Backing is essensial variable for welder.

Regards,
CH V RAMANA

On Wed, 27 Jun 2018 at 7:27 p.m., Kannayeram Gnanapandithan
ASME Sec XI may be referred. For WPS, joint design is not essential variable. 

On Wed, 27 Jun 2018 6:52 pm Chaitanya Purohit, <qtech.consultants@gmail.com> wrote:

Dear Vinoth,

 

If the weld is from one side without backing you can not replace Tig.

 

If welding is from both side, you can replace Tig with SMAW.

 

If welding is one side and if you have access from other side (to remove backing strip) or you are having option of permanent backing strip, you can replace Tig with SMAW.  

 

 

From: vinoth rajendra
Sent: Wednesday, June 27, 2018 12:25 PM
To: Materials & Welding
Subject: [MW:27990] Regarding Combined Welding Process WPS (GTAW+SMAW)

 

Dear Experts,

 

Please clarify,

 

we have a WPS & WQT for Combined welding process (TIG + SMAW)

 

Details:

 

Weld root pass: TIG welding

 

Weld Fillup: SMAW

 

can we use SMAW for Root pass instead of TIG process????

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