The invention belongs to the technical field of ultra-precision
machining, and relates to a surface treatment method of an anti-adhesion
single crystal diamond cutter for resin
cutting. According to the method, a tool
nose cutting a resin workpiece is heated to the resin
softening temperature, softened resin is slightly scraped and removed through a tool, the surface of a tool is prevented from being scratched, and the
surface roughness of the tool is preliminarily reduced. And through ultra-precision
polishing pretreatment, the
surface roughness of the cutter is further reduced. By constructing an
inert surface, the
surface energy is reduced, the
contact angle of molten resin is larger than 90 degrees, and
resin infiltration and adhesion are blocked. Through dual-mechanism synergistic anti-sticking, the
surface smoothness is improved and the resin adhesion is eliminated through physical-grade treatment, and then the super-hydrophobic resin characteristic is endowed through chemical-grade treatment, a C-H bond
inert layer, a
contact angle improvement, molten
resin infiltration inhibition and a C-F bond. Through the design of the
cutting edge, the thickness of the hydrogenated layer is smaller than 1 nm, the
radius of the cutting edge is kept to be 50-80 microns, the bonding area is reduced, the
thermal stability is improved, the requirement for the resin
processing temperature is met, and the anti-sticking effect is remarkably improved.