Hi Bhavesh,
You must have noted the excellent in-depth clarification on this matter from my learned friend Mr. P Goswami, P Eng.
Forum is definitely enriched & benefitted due to such contributors .
Best Regards..Amitabha
From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of Bhavesh Patel
Sent: Saturday, January 22, 2011 9:56 AM
To: materials-welding@googlegroups.com
Subject: Re: [MW:9401] RE: 9372] AC welding for P5A & P5C
Thanks Amitabha,
As I know by AC welding oxygen pick up (Generally 160~200 ppm) during welding is quite less than DC welding (Generally 250~300 ppm) which gives you a better toughness property.
But, how the Oxygen pick up is less in AC welding?
Kindly explain mechanism of the same.
Regards,
Bhavesh Patel
On Fri, Jan 21, 2011 at 5:33 PM, amitabha.bhattacharya <amitabha.bhattacharya@bwgindia.com> wrote:
Hi Bhavesh,
You may expect higher toughness values with AC welding for CrMo-steels.
Thanks
Amitabha
-----Original Message-----
From: materials-welding@googlegroups.com
[mailto:materials-welding@googlegroups.com] On Behalf Of JIGO
Sent: Friday, January 21, 2011 2:55 PM
To: Materials & Welding
Subject: [MW:9372] AC welding for P5A & P5C
Dear All,
Why we are using AC current for SAW welding in low alloy steel (Mainly
for P5A & P5C) ?
Kindly share your valuable input.
Regards,
Bhavesh Patel
ISGEC, Dahej
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