04-18-2012, 10:33 AM
(04-18-2012, 01:39 AM)Wongster Wrote: Does bimetal blade cuts everything? Mine seemed blunt after a short while. I cut brass, aluminum & steel with it. So far changed a few blades with each little mileage. I'm using a Proxxon bandsaw.
Regards,
Wong
Yes Bimetal cuts most materials, you do have to watch the hardness of the metal though as hardened steel will dull them quickly.
One problem with cutting aluminium is the BUE "Built up edge" that happens as the heat from cutting welds small bits onto the blade tip.
Best for cutting Aluminium is to spray with cutting fluid or wipe cutting wax on the blade before starting each cut, this helps to prevent the BUE and cools the blade. There are cutting fluids designed specifically for Aluminium like Relton A-9, Walter Alucut Lub Stick, Kerosene and even WD-40 if you want to put up with its negatives.
One of the mist sprayers would do well on a bandsaw as well.
Walter
starlight_tools, proud to be a member of Metalworking Forum since Apr 2012.