For SMAW and GTIG we use Constant current power source and for MIG/SAW its constant voltage power source.
For MIG Arc Voltage is 20+0.4I (I is welding current)
Rgds
Badrinath Raman
On Sat, 28 Feb 2009 22:34:56 +0530 materials-welding@googlegroups.com wrote
Hi Nilesh,
The voltage before striking the arc is called open circuit voltage. and once we strike the arc, the current increases, voltage decreases and after that arc is maintained at sufficient arc gap and the voltage is termed as arc voltage.
Normally arc voltage during SMAW welding is kept at 24-27 volts and OCV shall not be higher.
Mukesh
On Sat, Feb 28, 2009 at 11:15 AM, nilesh parsekar
wrote:
Dea All,
I want to know what happens to the voltage when we strike the arc.Is it drops to zero and then gradually increases.
thanks
--
Nilesh Parsekar
Sr QC Co-ordinator
Exterran Belleli Energy
Fujairah - Sidem
Mobile - 0506561785
 |
--~--~---------~--~----~------------~-------~--~----~
To post to this group, send email to materials-welding@googlegroups.com
To unsubscribe from this group, send email to materials-welding-unsubscribe@googlegroups.com
For more options, visit this group's bolg at http://materials-welding.blogspot.com/
The views expressed/exchnaged in this group are members personel views and meant for educational purposes only, Users must take their own decisions w.r.t. applicable code/standard/contract documents.
-~----------~----~----~----~------~----~------~--~---
S355 J2 WP is a weathering structural steel It has better atmospheric corrosion resistance. Use E 8018 - W1/W2 Electrodes This is regular...
-
Q: What are equivalents for standard Q 235 B (and Q 235 A) for U-channels? ...
-
Definition of buttering from ASME Section IX, QW/QB-492 Definitions: Buttering: the addition of material, by welding, on one or bot...
-
Section I. PRINT READING 3-1. GENERAL a. Drawings . Drawing or sketching is a universal language used to convey all necessary information to...
No comments:
Post a Comment