Patent ID: 6716483
Filing Date: 2004-04-06
Classification: B23P,B27G,C23C,Y10T

Abstract:
A method for providing and using a cutting tool to cut a plurality of first workpieces, with each first workpiece being wood or including a substantial amount of wood, to produce a plurality of second workpieces from the first workpieces, the method comprising:applying via a vacuum procedure a coating to at least a portion of the cutting tool that includes a cutting wedge of the cutting tool, the coating including in hard layer a an outer friction-reducing layer over the hard layer, whereby a coated cutting tool is formed, and wherein the hard layer is harder than the friction-reducing layer and the friction-reducing layer has a lower coefficient of fiction than the hard layer; and then cutting the first workpieces, which are wood or include a substantial amount of wood, with the cutting edge of the coated cutting tool to produce the second workpieces, wherein the applying the coating includes: adhering the hard layer to the cutting tool, with the adhering the hard layer to the cutting tool including adhering titanium aluminum nitride to the cutting tool, and adhering the friction-reducing layer over the hard layer, with the adhering the friction-reducing layer including adhering tungsten carbide with carbon over the hard layer.