The instructional section of this site deals with the use of C100 (CO2), C25 and Ar in MIG welding.
Some of the newer welders, using inverters, can programmatically change the electrical characteristics of the power supply. For example, the new Miller 211, the Miller Multimatic 200 are two welders which specifically have program settings for the use of C100. My understanding is that the primary change is in the apparent "inductance" properties of the power supply (emulated with software). A secondary change is that a different voltage is necessary to make C100 perform better.
History notes that C100 was the first gas used with mild steel and the MIG process, and that later experiments were conducted to find better mixes, and C25 was a compromise mix offering better weld appearance, and better penetration.
The bulk of published current web and youtube based information tends to compare C25 with C100 using the same settings on a machine. A good apples and apples comparison. However, there seems to be a shortage of comparisons which compare those two gases when taking advantage of inverter welders with software power supply control specifically designed for C100.
Can anyone point me to more effective comparisons which take a look at the results obtainable under optimized conditions with each of these two gas products, used in a suitable provisioned welder?
The farmer down the road from me uses C100 all the time, and swears that it is cheaper for his operation. The welder in town says it isn't worth the risk of saving a few pennies, when he knows he can always weld with C25 and get acceptable results. Where is the truth for DIYers?
Thanks.
Some of the newer welders, using inverters, can programmatically change the electrical characteristics of the power supply. For example, the new Miller 211, the Miller Multimatic 200 are two welders which specifically have program settings for the use of C100. My understanding is that the primary change is in the apparent "inductance" properties of the power supply (emulated with software). A secondary change is that a different voltage is necessary to make C100 perform better.
History notes that C100 was the first gas used with mild steel and the MIG process, and that later experiments were conducted to find better mixes, and C25 was a compromise mix offering better weld appearance, and better penetration.
The bulk of published current web and youtube based information tends to compare C25 with C100 using the same settings on a machine. A good apples and apples comparison. However, there seems to be a shortage of comparisons which compare those two gases when taking advantage of inverter welders with software power supply control specifically designed for C100.
Can anyone point me to more effective comparisons which take a look at the results obtainable under optimized conditions with each of these two gas products, used in a suitable provisioned welder?
The farmer down the road from me uses C100 all the time, and swears that it is cheaper for his operation. The welder in town says it isn't worth the risk of saving a few pennies, when he knows he can always weld with C25 and get acceptable results. Where is the truth for DIYers?
Thanks.