Plastic processing is mainly cold extrusion molding method. Cold extrusion is under the high pressure of the hydraulic press, and the quenched extrusion punch is slowly extruded into the blank with a certain plasticity so that the cavity with the same shape as the punch and convex and concave is obtained on the blank.
Tantalum extrusion method is a kind of no-chip processing method, and its processing principle is pressure forming. Cavity cold extrusion features: high mold speed, cavity molding surface no need to re-machining, complex shape and precise shape, suitable for plastic good mold blank material.
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