Surface spraying processing method for producing self-cutting edge cutter and spraying template

The invention discloses a surface spraying processing method for producing a self-cutting edge cutter and a spraying template thereof. By the surface spraying processing method, the spraying density distribution of different wear-resistant materials from a cutting edge to inside is controlled, so that from the cutting edge to the inside, the ratio of low-wear resistance materials is gradually reduced and the ratio of high-wear resistance materials is gradually increased, so that gradual change of the wear resistance of coating is achieved. During using, the wear resistance of the coating is gradually increased from the cutting edge to the inside, so that the wear amount is gradually reduced and further a self-cutting edge effect is achieved. 本发明公开种生产自刃型刀具的表面喷涂加工方法及其喷涂模板，所述方法控制从刃口处往里的不同耐磨性材料的喷射密度分布，使得刃口往里，低耐磨性材料比率逐渐变小，高耐磨性材料比率逐渐变大，进而实现涂层耐磨性的逐步变化。在使用中，由于涂层的耐磨性由刃口往里逐渐增强，从而使得磨损量逐渐减少，进而实现自刃效果。