[TheForge] Axial spray Metal Transfer (spray arc)

[Peter Fels And Phoebe Palmer]

As per your table I cranked my BlueGlue200's voltage setting full on and 
set the IPM to about 50 using .035 wire and mostly got spray transfer. 
Still some spatter but way better penetration... I sure wouldn't want to 
do it overhead in a speedo.
 Have yet to try the pulse setting. Any feedback as to where it should 
be set?
Pete F

Kenny O. wrote:

> There are three different  chemical behaviors when doing GMAW
>
> Inert
>
> Reducing
>
> Oxidizing
>
> Axial Spray requires and wants O2 to produce the heat,  without the O2 
> the heat is limited.
> So, this requires an Oxidizing environment.
>
> Inert and Reducing atmospheres will keep the O2 out which is the 
> desired effect in order to
> prevent superficial porosity (oxidation) but the heat can't be 
> reached. Ar, He and N2 alone
> and in combination create  Inert and Reducing conditions. This is used 
> mostly in non ferrous
> metals except for certain types of SS.
>
> When using the axial spray technique it is important to use 
> deoxidizing wire. Because of the major
> presence of O2 there will be porosity under the surface which can not 
> be seen by the eye
> (only if you give a shatt).
>
> process       |      WIRE DIA.    |      AMP RANGE   |   VOLT RANGE   
> |     shielding gas
> ------------------------------------------------------------------------------------------------------------------------- 
>
> axial spray   |      0.030            |        115 - 200        
> |         15 - 27          |      75% Ar + 25%CO2
>                             |   
> --------------------------|---------------------------------|-------------------------------|        
>
>                             |       0.035           |         165 - 
> 300       |         18 - 32          |       98%Ar + 2%O2     
>                             
> |----------------------------|----------------------------------|-------------------------------| 
>
>                             |       0.045           |         200 - 
> 450         |         20 - 34         |
>
>
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