Re: [MW:18017] FCAW Weaving Width

     Exactly. Mr Sridhar is correct.  In Aramco according to their standards it is there about width of SMAW, GTAW( 3 to 5 times of diameter) processes . But if the Client specification or standards is not mentioned anything about Width , you can use  best industry practice. You had been used already Multipass caping. It is acceptable. If there is requirement of  hardness test, you can assure the hardness(mechanical properties) value to proove your client about the acceptance of your caping ( main intention of multi pass caping).

On Mon, Jun 24, 2013 at 8:47 AM, c sridhar <sridhar305@yahoo.com> wrote:

When your client says 20 mm  is not acceptable, then pl. find out what is their acceptable norms.

Calculate the total width of cap run and use 3 layers in place of  2 layer deposit.

This will help to increase the travel speed (due to reduced width of each layer) and also avoid NCRs.

Sridhar.

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From: Ram Chatt <chattru@gmail.com>
To: materials-welding@googlegroups.com
Cc: c sridhar <sridhar305@yahoo.com>
Sent: Monday, 24 June 2013 8:34 AM
Subject: Re: [MW:18007] FCAW Weaving Width

Thank you Friend,

 

 

in my problem we are welded so many joints for FCAW welding weaving width for single layer 20-25 mm (using multi 2 layer welding totaly caping width 45-48 mm ).But our client said this is not allowable .they make NCR.

 

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Thanks & Regards

PRADEEPKUMAR HORMIS
QC WELDING INSPECTOR
ARAMCO PROJECT(JEDDAH REFINERY)
Mob:+966 - 59 11 36 36 9

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