Tuesday, December 7, 2010

Re: [MW:8576] Weld Weave

Dear Mr. Jaydeep,
 
I have attached fig 1 and related notes. This is from edition 2004. I didn't find about weaving. Can you please copy the paragraph or notes and mail it.
 

 Ahmed Husain



From: joshi jaydeep <jaydeep.p.joshi@gmail.com>
To: materials-welding@googlegroups.com
Sent: Tue, December 7, 2010 2:16:51 PM
Subject: Re: [MW:8566] Weld Weave

SFA 5.1, General notes of Fig 1 (PAD FOR CHEMICAL ANALYSIS OF WELD METAL), Note No (e)
 
 
Jaydeep

On Tue, Dec 7, 2010 at 4:21 PM, Ahmed Husain <ahmraha@yahoo.com> wrote:
Can you please specify the paragraph no/detail. I have 2004 addition, and I could not find it in general notes.
 
A. Husain



From: joshi jaydeep <jaydeep.p.joshi@gmail.com> Sent: Tue, December 7, 2010 6:19:02 AM
Subject: Re: [MW:8539] Weld Weave

Good information....Just a slight correction, It is on page no. 18 of 2007 ASME Sec II C.
 


 
On Mon, Dec 6, 2010 at 6:09 PM, PRAMODH NAIR <pramodhnairmr@yahoo.com> wrote:
As per the ASME Sec II Part C page no 11 in the general notes indicates weld layer shall be no more than 2.5 times of the diameter of the core wire. 

M.R.Pramodh
Sr.QC-Insallah Gas Compression


From: BHARAT GOLE <bharatgole@hotmail.com>
To: Material Welding <materials-welding@googlegroups.com>
Sent: Mon, December 6, 2010 7:00:34 AM
Subject: RE: [MW:8522] Weld Weave

More weaving will also cause more dilution !
Regards

Bharat B. Gole

 






Date: Mon, 6 Dec 2010 11:05:27 +0530
Subject: Re: [MW:8520] Weld Weave
From: jaydeep.p.joshi@gmail.com
To: materials-welding@googlegroups.com

EN standards recommend to limit the weave width to 3 times electrode diameter
 
ASME Code doesn't suggest the limit of weaving but  as a good engineering practice,  it is restricted to 3 x Electrode Dia in case of SMAW and 12-13mm Max. in case of FCAW / GMAW.
 
Effect of weaving:
1. Reduction in number of passes to be deposited
2. increasing the heat input
3. Higher weaving also results in reduction of shielding gas at the edges if the parameters are not properly set
4. It affect the side wall fusion, need to ensure the proper dwell time at the ends
5. Weaving speed need to be control otherwise causes the arc deflication
6. Higher weaving causes the reduction in impact properties
 

Jaydeep Joshi | TDW India Limited

Plot No 16 | Phase –III | Alindra – Savli G.I.D.C | Taluka : Savli | Vadodara – 391 775

Board : +91-2667- 619900 | Fax : +91- 2667- 619501| Extension : 7845

E-Mail : jaydeep.joshi@tdwilliamson.com  | www.tdwilliamson.com

Cell: +91 9978959626

P    Before printing, Think about ENVIRONMENTAL responsibility

  

On Sun, Dec 5, 2010 at 8:30 PM, Adi <adinraos@gmail.com> wrote:
Dear all

if the weld weave length increased What will happen to weld and what
is the corrective action to be taken for weld
please advise
is any code reference, please tell me

Adi

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