用作砂轮模具的材料,一般均要求具有较高的硬度和良好的耐磨性,并有一定的韧性及良好的可加工性。目前,全部符合这种要求的材料还很少。一般说来,具有韧性及加工性能尚好的材料,如45钢等,则它的硬度及耐磨性就较差。反之,硬度高,耐磨性好的材料,如YG8等,韧性就较差,且加工困难。 Used as a die wheel material, generally require a higher hardness and good wear resistance, and a certain degree of toughness and good workability. At present, all material that meets this requirement is still scarce. In general, the toughness and processing properties are still good materials, such as 45 steel, then its hardness and wear resistance is poor. On the contrary, high hardness, good wear resistance of materials, such as YG8, toughness is poor, and processing difficulties.