There are tens of thousands of digger in service, due to the forging of the excavator bucket teeth operation object is ore and rock or soil, working condition is very bad, mining operations of bucket teeth not only by the sliding wear but also to absorb a certain amount of impact load, thus greatly shorten the service life of the dipper teeth, become the largest parts consumption.Due to the low surface hardness of bucket teeth, its poor wear resistance and wear, part of which due to the lack of toughness, when subjected to a certain impact, brittle break, not only caused material waste and economic losses, but also directly affect the production schedule.Therefore, in the ideal of wholesale excavator bucket tooth manufacturers, the surface material of excavator bucket tooth should have high hardness and wear resistance, and the matrix material should have the characteristics of high strength and high toughness, but this is difficult to achieve simultaneously by a single material.