The Metal Molds
Under the action of external force, the billet becomes a tool with specific shape and size. It is widely used in blanking and forging CNC machining for cold heading, extrusion, pressing of powder metallurgy parts, pressure casting, and plastic or injection molding of engineering plastics, rubber, ceramics and other products. The mold has a specific contour or inner cavity shape, and the shape of the cutting edge can be used to separate the blank from the contour line (blanking). The shape of the cavity can be used to obtain the corresponding three-dimensional shape of the billet. The mold generally consists of two parts, the movable die and the fixed mold (or punch and concave die), and the two parts can be divided into two parts. It is a precise tool with complex shape, bearing billet force and high requirement for structure strength, rigidity, surface hardness, surface roughness and machining precision.
Key words:precision mold parts
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