How To Clean Metal For Welding. Electropolishing not only clears the surface from stains but it also helps the metal become properly passivated. You need to remove the surface contaminants from the surface physically.
This is one of the easiest methods of metal preparation. In MIG welding the metal sheets are not completely cleaned. The abrasives must have decisive cutting actions and brightening actions.
Use a Wire Brush to Remove Thick Impurities.
If playback doesnt begin shortly try restarting your device. When you are using a stainless or nonferrous power brush for weld cleaning run it at a very slow speed between 1250 and 4250 surface feet per minute SFPM. A mild electrolytic cleaning fluid is applied to the surface of the weld by using a conductive weld cleaning brush. Tips for Manual Mechanical Cleaning.