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Dry powder pressing mold production technology and cavity shape

Dec 12, 2017

Dry powder pressing mold is in blanking, forming stamping, forging, cold heading, extrusion, powder metallurgy parts, pressure casting, and engineering plastics, rubber, ceramics and other products injection molding processing, Used to make the blank under the action of external force has a specific shape and size of the workpiece tools.

Dry pressing mold in the production process will have its specific profile or cavity shape, The contour shape with the cutting edge allows the blanks to be separated and punched to some extent according to their profile shape, The cavity shape of the entire device allows the blank to obtain the corresponding three-dimensional shape.

Under normal circumstances, dry powder compression mold can be divided into two parts, dynamic mode and fixed mode, They are separable and co-ordinate, In the time of separation can effectively insert its blank or remove the workpiece, When closed, the workpiece and the blank separation or forming. In blanking, forming stamping, forging, cold heading, pressing and compression molding process,

External force required for separation or forming is applied to the blank through the die. In the extrusion, die-casting and injection molding process, the external force from the air pressure, plunger, punch, etc. applied to the blank. Mold is subjected to the expansion of the blank.

Dry powder compression mold in addition to its own outside,

In the process of using the mold also need its seat, the mold frame and the guide device and the items out of the device, These parts are generally made of universal type, suitable for a range of different molds.

Dry-pressed mold to a certain extent, basically a single piece of production, In the use of its complex shape and the structural strength, stiffness and surface hardness of the machining accuracy requirements are relatively high, So its mold production needs a high level of technology, The timely supply of mold and its quality, a direct impact on product quality, cost and new product development. Therefore, the level of mold production is an important symbol of the level of manufacturing machinery.