Difference between GMAW-S and GMAW-STT
M.A.Samdani
Dinesh
Dear sir,
We qualified welder by TPI For gmaw STT.
REGARDS
DINESH
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John Henning
Lincoln’s STT process and Miller’s PipeWorx are both short circuiting arc transfer mode GMAW. The difference is a high level of control on the amperage and voltage to quiet the arc. However they are still short arc and so must follow the follow the ScIX rules applied to that process.
For welder qualification bend tests are required because lack of fusion defects at the root may not be detected by radiography.
John A. Henning
Welding & Materials
From: material...@googlegroups.com [mailto:material...@googlegroups.com] On Behalf Of M.A.Samdani
Sent: Sunday, April 28, 2013 9:26 AM
To: material...@googlegroups.com
Subject: [MW:17584] Difference between GMAW-S and GMAW-STT
Dear Experts,
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