Welding Efficiency

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What are the parameters on which electrode efficiency depends? I have tried searching for these on Google, but couldn't find anything. Many electrode manufacturers have provided data of typical electrode efficiencies. However I was looking for some sort of qualitative material.Thank you for your time.
Reply:First of all, which process or processes are you referring to? GMAW, FCAW, GTAW, SMAW, SAW, PAW, OAW?Secondly, what exactly is your definition of "efficiency"? are you referring to energy efficiency (how much of the energy put out by the machine is actually used to provide usable heat) or transfer efficiency (how much of the electrode ends up as part of the weld) or deposition rate (how much weld can be deposited per unit of time)?Visit Tensaiteki.com
Reply:I'm looking for data on SMAW for transfer efficiency.
Reply:There is deposition efficiency that is HIGHLY affected by stub length. If you buy 50 LBS of electrode and use them all on a job and deposited 30 lbs of weld metal then the efficiency is 60%.Other factors can be amperage and voltage but in my opinion stub loss can be the biggest factor.Difficult positions requiring electrodes to be bent or difficult to start can reduce efficiency due to increased losses from poor starts etc.Electrode types can also vary the efficiency. Because of the iron powder content in 7018, more weld is deposited per LB of welding electrodes used. 6010 is less efficient than 6013 due to spatter losses etc.Have a nice dayhttp://www.weldingdata.com/
Reply:Thanks