Instead of pushing it forcefully slide the jigsaw slowly and allow it to eat through the sheet metal.
Cutting aluminum sheet with jigsaw.
If you are making a long cut you may need to apply cutting oil to the blade of the jigsaw to keep the blade cool.
In terms of blades you ll want to make sure that you have something with a lot of space between the teeth.
Use a jigsaw if circular cuts need to be made in the aluminum.
The blade will be about 1 2 inch away from the aluminum.
When you re cutting aluminum on a band saw you ll want to crank the blade speed up to 250 feet per minute.
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Slowly push the jigsaw forward following the cutting line.
Clamp a guide to your aluminum on both sides of your saw.
Work slowly and methodically.
Cutting sheet metal is slow work with a jigsaw and even more so if you are working with corrugated metal.
Afterwards lower the blade approximately 0 39 inches 0 99 cm past the metal and guide the blade along the metal.
Do it carefully and slowly to make sure you get the shape right.
How to cut sheet steel using a jigsaw with a metal cutting blade.
Position the shoe or base plate of the saw flat on the surface to be cut.
Position the saw close to the side of the aluminum where you want to begin cutting.
Position the jigsaw at the point where the cut will begin.
If your saw has variable speeds just consult the chart.