EXTRUSION DIE CONSTRUCTION AND ITS METHOD OF MANUFACTURE

摘要

EXTRUSION DIE CONSTRUCTION AND ITS METHOD OF MANUFACTURE In accordance with a preferred embodiment, a monolith extrusion die is formed by a plurality of individual tube elements bonded together as a tube stack defining a plurality of extrudable material feed holes and reference guides for a plurality of individual shaping teeth each having a root segment located in a reference guide and each having a shaping head spaced apart from adjacent shaping heads to form intersecting rows of extrusion slots having a shape corresponding to the monolith formed by extrudable material directed from the feed holes through the shaping teeth. The method of the present invention includes stacking individual tubes into a tube stack with reference guides therein and with feed holes therethrough and locating a plurality of individual shaping teeth in the tube stack for forming a transition path for flow of extrudable material from the feed holes while forming intersecting rows of extrusion slots shaped to correspond to the monolithic honeycomb structure formed by passage of extrudable material therethrough.