Slitting Saws and some considerations!
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When determining the best method for producing a part feature, length to diameter ratio often comes into play. Narrow slots are often too deep to be practical with conventional milling cutters.
Starting from the slitting saw itself, some have teeth only on the periphery which can be high speed steel or even Carbide tipped. Some have teeth that extend along the face such as the one in this clip, these teeth on the faces help with chip clearing.
An arbor is often used to retain the saw blade. Concentricity and rigidity in the arbor are the first and most important point of connection to your machine tool. Some machines can even support the cutter from both sides for enhanced rigidity. The toolholder and spindle also play a major role in the quality of the finished slot produced.
Climb milling vs. conventional milling should be carefully considered based on the machine you will be using. Climb milling ensures excellent chip evacuation but can have a tendency to pull the cutter into the part at unexpected times. Conventional milling has poor chip evacuation but loads all cutting forces into any backlash that may be present in your machine for a safer cut. CNC machines normally have very little backlash so climb milling is preferred whereas conventional milling is often reccomended on something like this Bridgeport.
An in depth post on the differences between the two styles of milling is upcoming.
Chip evacuation can also be greatly enhanced with the aid of compressed air/minimum quantity lubrication, thru spindle coolant, or flood coolant.
Low RPM and steady feed are usually ingredients to success. Don't guess, look up the slitting saw manufacturer's reccomendations. You will want to clamp your workpiece very securely as well. Any jumping or pulling can lead to disaster with cutters such as these.
These are just a few points to consider when determining if a slitting saw is best for your application.