RES: [MW:24927] Jack up rig welding

GMAW controlled short arc process can be used with very good results and high productivity, please refer to RMD Processes from MILLER Welds or STT Process from LINCOLN ELECTRICS

-----Mensagem original-----
De: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] Em nome de PUB:Pravin G
Enviada em: segunda-feira, 6 de junho de 2016 21:05
Para: 'Agustin Jimenez' via Materials & Welding
Assunto: [MW:24925] Jack up rig welding

Dear expert,

I'm seeking for your valuable technical advice.
Currently we are working on jack up rig project.
Client insist to use GMAW process for root pass and continue with FCAW.

Section: chord and rack
Thickness:100mm
Root cap: 2-3mm
Material: ABS EQ70

In my experience, for root welding mostly GTAW or SMAW is preferred.

I have explained to client using GMAW process might cause burn through or lack of fusion due to high welding current and travel speed.

Kindly advice if GMAW process is advisable to use? Appreciate your valuable advice.

Pravin Poornachandran
Singapore (JWES)

Sent from my iPhone

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