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Re: [MW:33219] Back welding process

By Materials & Welding
Hi

For the inside welding requirements What is the specification or client requirements, weld joint efficiency considered during design, working pressure to design pressure (factor of safety) etc parameters will decide. 

If inside complete penetration, complete edges fusion happened no need to go for the inside seal run or capping else you can plan for the defect removal and can do the welding 

Coming to process, it should be as per approved WPS. 
SMAW would be acceptable with same consumables 

On Sun, 10 Jul 2022 at 10:27 AM, Mahesh Koppisetty <maheshmechanical24@gmail.com> wrote:
Respected experts ,
Happy Sunday to all. 

  A  48 " tubular having 25 mm thickness we made a single bevel butt joint. 

The root & Hotpass  is welded with GTAW and fill up and capping is welded with SMAW. 
My query is that, 

Is back welding  is required or not . If required , please tell the procedure of back welding.
I mean to ask ,
1. which welding process should I use GTAW or SMAW for back welding. ? 
2 . With back gouging or without  back gouging. ? 

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Thanks & Regards,
Lakshman kumar B
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