Every workshop has an angle grinder with a cutting disc. Cutting a piece of steel or cutting a pipe, it happens several times a day. Perhaps the cut-off wheel is the most frequently used tool. Because the cutting wheel is used so often, it is important to keep paying attention to its proper use. From a safety perspective, the presence and position of the guard is important. Often the guard is seen as a hindrance, depriving the correct view of the workpiece. But with the correct position of the guard, this accessory is actually a very fine tool! It deflects the sparks released when cutting away from the person, which is actually much more relaxing and safer.
Are you working with a pushing or pulling motion? This in turn affects the heat that is introduced and thus the discoloration of the metal. The so-called pendulum, moving back and forth with the machine, is the best way to introduce as little heat as possible.
For thicker sheet metal, it is better to use a 1.6 mm thick cut-off wheel. When cutting through, the disc wedges between the metal to do its work there. A thin cutting disc contains fewer abrasive grains than a thick disc and is therefore more likely to dust. A thicker cutting wheel contains more grains on the side, so it keeps cutting.