Welding uses an electrical competence source to constitute heat that melts the flux on an electrode. Amperage choice is a critical apportionment of welding and may be predicted based on the electrode size and Essay of the metal you Testament be welding, among other factors. The next steps Testament appearance bias the amperage when welding.
Instructions
1. Espy the bond between electrode size and metal thickness. A thicker model metal Testament desire augmented penetration for an emphatic weld and a thicker electrode.
2. Locate the amperage to the recommended setting for your particular handle. Most latest welding machines compass a chart permanently attached to them showing amperage settings for habitual combinations of electrodes and pattern metal thicknesses.
3.4. Use one pass for a thin base metal. The average welder Homewards should have a welding machine in the standard 225 to 300 amp range that will allow metal of up to ? inch thickness to be welded in a single pass.5.
Estimate the initial amperage choice upon electrode size. Once the electrode has been selected, the correct amperage may be estimated at one amp per thousandth of an inch of the electrode's diameter. Thus, an electrode ? inch thick would require 250 amps (? = 250/1000).
Make multiple passes for a thicker base metal. In practice, even professionals use multiple passes for metal thicker than ? inch rather than using more than 300 amps. This is primarily because a welding torch will be able to weld continuously below a certain amperage but will need to cool off periodically at higher amperage.
