We call them wood cutting tungsten carbide inserts, and now they are used in wood processing machines. But it doesn’t mean we have only one choice. In fact, years ago there’s a kind of flat knife which are popular among producers. But why we can hardly see the traditional flat knife in the factory or in personal workshop?
1. These tungsten carbide cutting knives for wood will not produce burn marks on cutting surface, but traditional flat knives will. When it has been using for a long time and it’s cutting edge is getting blunt, or when feed is temporarily stopped, cutting heat will remain burn marks on the surface.
2. Traditional flat knife has a bad performance in temperature distribution, and when your tool getting hot in its working, the cutting edge will also sustain higher heat, and its passivation speed will be improved, which may cause the tool lose its original stability. But none of those carbide blades with aluminus alloy blade body will have these problems. These tungsten carbide inserts with better heat dissipation have indicated the stability and promised a longer service life.
3. Small blades loaded on spiral cutter head will produce smaller wood chips, which means you can easily discharge wood chips away from the wood surface. But traditional flat knives is prone to produce large signs of damage on the wood. Due to its large force area, traditional flat knives is easy to form cutting deformation, and will give you a ragged cutting surface.