Quote:
Originally Posted by davidpretorius
the aluminium oxide that forms the skin on aluminium will clog.
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Hi David,
'Fraid not, the aluminium oxide layer is very thin, about 0.05 mm max, and it is not this which clogs the teeth of a file or blade, but the parent metal. Aluminum oxide is also known as carborundum, and is not soft but very hard and brittle, and is widely used as an abrasive grit in grinding wheels and papers. Ever see a white cylindrical grinding wheel? Aluminium oxide.
All the same you have posted very good advice, a jigsaw is a great idea, very safe, and I would use a blade about 4mm pitch, or about 6 tpi. Generally you would use a coarse blade in softer metals, and don't force the cut.
Cheers