四、拼块模具的结构 1.常用各种类型拼块的结构 一般常用矩形工具钢加工成如图19(a)形状,材料浪费很大,若是锻造或用轧出标准规格型钢时,如图19(b),可大大节省材料和加工时间。 为了节约贵重的工具钢,可采用工具钢作刃口,其他部分用碳钢,把两者焊接在一起,其结构如图20所示。 可以采用堆焊工艺方法,在刃部堆焊合 Fourth, the structure of the puzzle mold 1. Commonly used in various types of block structure Commonly used rectangular tool steel into the shape shown in Figure 19 (a), a great waste of materials, if the forging or rolling out of standard steel, the figure 19 (b), can save material and processing time greatly. In order to save valuable tool steel, tool steel can be used for cutting edge, the other part of the carbon steel, the two welded together, the structure shown in Figure 20. Surfacing method can be used in the blade edge welding