high requirements on mold

The blank is made into a tool with a specific shape and size of workpiece under external force. Widely used in punching, die forging, cold heading, extrusion, powder metallurgy, pressing, pressure casting, and engineering plastics, rubber, ceramics and other products in the plastic or injection molding molding process. The mold has a specific profile or cavity shape, and application of a profile shape with a cutting edge allows the blank to be separated (blanked) in the contour shape. The shape of the inner cavity allows the blank to obtain a corresponding three-dimensional shape. The mold generally includes two parts of a moving mold and a fixed mold (or a punch and a mold), and the two are separable. The parts are removed when they are separated, and the blanks are injected into the mold cavity when folded. The mold is a precision tool with a complex shape and can withstand the expansion force of the blank. It has high requirements on the structural strength, rigidity, surface hardness, surface roughness and processing precision. The development level of the mold production is one of the