Tungsten carbide disc cutter is fabricated by pressing and sintering process, which has good toughness, abrasion resistance, anti-oxidation and crater wear resistance. So it can be widely used in paper cutting, printing, packaging and some electronic fields. Take metal sheet longitudinal cutting as example, it generally uses a pair of upper and lower disk cutter for rolling-shearing process. In the cutting process, the upper and lower disk cutter to maintain the level in the axial gap and radial transfer volume,…