Postextrusion Processing

Cutting of the extruded part to the desired length can be accomplished by fixing the cutting device at the die exit. For continuous and large throughput extrusions, the ratio of the cutting speed to the extruded part speed will be a significant factor. As the ratio of speeds increase, the angle between the cutter and extruded part will approach 90° (Ref 6). It is important that the cutting operation not cause any surface tears or close any small internal holes found in complex parts, such as the holes in catalysts supports.

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