Re: [MW:26120] About GMAW , metal transfer technique recognition

 Only using an oscillograph you can ind out if you are in the short-circuit transfer mode. Check those links:

https://www.lincolnelectric.com/assets/global/products/consumable_miggmawwires-superarc-superarcl-56/c4200.pdf

http://www.esabna.com/euweb/mig_handbook/592mig1_5.htm

As a "general rule"

Typical A range: 30-200 A

Typical V range: 16-22V

wire diameter: below 1,2 mm

Heat input low, risk of lack of fusion 

      

Ho                  The above is only indicative. Only the oscillograph can tell you the trough           

2017-02-20 10:51 GMT+02:00 Kannayeram Gnanapandithan <kgpandithan@gmail.com>:

Arc Voltage less than 21v  is a short circuit/Dip transfer mode

THANKS & BEST REGARDS,

KG.PANDITHAN, IWE,  AWS-CWI, CSWIP 3.1,

CONSULTANT-WELDING & QUALITY

Mobile no: +919940739349

On Sun, Feb 19, 2017 at 10:16 PM, Prasad Rode <purode333@gmail.com> wrote:

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Dear sir,

All of we know that in GMAW process, there are three metal transfer techniques.
1) spray transfer.
2) globular transfer
3) short circuiting.

We know that, as per different temperature, voltage and with different shielding gases also, different technique generated.
But, on site and in practicality, how we come to know that welder is using which type of technique.

Regards
Prasad

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Welding, Stress Analysis, Corrosion, QA/QC, Failure Analysis, Risk Analysis

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