Advice on Cutting Non-Ferrous Materials:
Cutting non-ferrous material such as aluminum, copper and soft brass is done effectively on the Original Saw Metal Cutting Series. Above all, blade choice is an important factor.
First, consider the wall thickness of the material. Most of the time extruded aluminum is being cut. If the wall thickness is under 1/8”, choose a high speed steel blade with approximately 250 to 300 teeth. On the other hand, if the wall thickness is 1/8″ or greater, use a carbide tipped non-ferrous blade with a negative 5 degree hook. Using this type of blade will lower the chance of the blade grabbing the material and will provide a smooth finish.
Secondly, consider the stiffness and shape of the extrusion. If your extrusion has a thin wall with a flat area, flex may occur during cutting. In addition, there is a chance the wall may chatter during cutting. This can cause the carbide teeth to chip or break if the material is too thin.
Thirdly, in most non-ferrous cutting applications we recommend a mist coolant system The mist coolant system will extend blade life and cut quality will be improved. Not using a mist coolant will allow the blade’s gullets between the teeth to “clog up” with material. This will require more frequent blade sharpening.
To summarize, look at the wall thickness, stiffness and the shape of the extrusion. Equally important is choosing the proper blade and considering a mist coolant system. This will result in quality cuts.
Advice on Cutting Ferrous Material:
Cutting ferrous material (steel) can also be done quickly and effectively on Original Saw Metal Cutting Series machines. Material up to 8 gauge can easily be cut with our high speed steel blades. These blades, which run at 3400 RPM, are friction cutting blades. They melt the material rather than cutting it.
With this type of cut, the advantage is speed over cut quality. The cut is very accurate, however, there will be a slight burr because of the friction cutting action. Material thickness, speed of the carriage and the type of material are factors that affect the burr size.
Most importantly, mist coolant on ferrous material cutting is prohibited and will make the burr size much larger.