Test Position?

Date 08-01-2017 07:02

Good Day everyone!

A Welder is welding production pipes with groove positioned as per attached photo. Checking his ID with details below:

Welder's qualification ID:
Code: ASME + (API 5L for essential and supplementary variables)
Welding Process: GMAW
Mode: Short-circuiting
Type : Semi Automatic
API Grade: Qualified up to X65
F-number: 6
Weld position: 2F
Thickness: All (qualification=22mm)

Production WPS/PQR with Groove position: 1G

Appreciate any comments for this.Thanks

-Are Aye

Attachment: GMAW.jpg (630k)

By welderbrent (*****)

Date 08-01-2017 10:06

Question???

By Lawrence (*****)

Date 08-01-2017 13:43

Welder is qualified for short circuit.... Production sheet parameters are for spray

Welder is qualified for fillets..... Production is grooves

A quick glance shows this for starters

By Are Aye (*)

Date 08-02-2017 05:05

Hi Lawrence,

Is this a Spray transfer mode?
Semi-Automatic GMAW 1.2mm wire diameter,
Ampere=230~250,
V=31~32,
Typical welding Speed=8~12mm/sec,
Heat Input Range=5~8KJ/cm

how about this?
Automatic GMAW 4.0mm wire diameter,
Ampere=900~1000,
Voltage=20~21,
Typical welding speed=50~60mm/sec
Heat Input Range=2~4KJ/cm

Welder should be qualified as per Table QW-461.9 - Pipe-Groove @ 2G test position ?

Thanks,
Are Aye

By Metarinka (****)

Date 08-11-2017 22:31

Welder should be qualified in 3G position, anything more than 15 degrees is no longer flat and 2G is horizontal welding.

That's from AWS though, not ASME but the intent is usually the same.

By WeldinFool (**)

Date 08-01-2017 18:02

Welding position shown in the photo is not quite what is specified in the WPS either...