Thursday, March 9, 2017

Re: [MW:26175] GMAW- Spray transfer Lack of Side Wall fusion in FPW welds

Make sure that you are not in short circuit mode.
Reduce travel speed.
Work at the higher ampere range.



Sent from my Samsung Galaxy smartphone.

-------- Original message --------
From: materials-welding@googlegroups.com
Date: 08/03/2017 16:36 (GMT+03:00)
To: Materials & Welding <materials-welding@googlegroups.com>
Subject: [MW:26169] GMAW- Spray transfer  Lack of Side Wall fusion in FPW welds

I have a technical issue with GMAW- Spray transfer process. The wire is 1.2 mm dia. The joint configuration is single bevel butt joint. The weld defect is mostly Lack of Side Wall fusion. The member thickness is 12 mm. All the welds have back chipping and welding. I suggested employing stringer bead technique to improve side wall fusion. But unfortunately, many of the joints are getting rejected in Ut testing. Kindly suggest some techniques/remedy for this problem. Looking forward to your positive feedback. 

Regards, 

Binoj Nair

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