Plastic Extrusion Die Design Pdf

Die design criteria the die is the assembly located at the end of an extruder which contains an orifice used to shape a plastics melt figure 1.

Plastic extrusion die design pdf.

It contains a description of the extrusion manufacturing process compatible materials and principles of design. Multiple mechanisms affect the size and shape changes in the extruded product and these can be controlled by die design. Kostic and others published design of extrusion dies find read and cite all the research you need on researchgate. Plastic extrusion is a high volume manufacturing process in which raw plastic is melted and formed with a die and sizer into a continuous profile.

Basically the die is a block of metal containing an internal flow channel that can be divided into three parts. The extrusion of complex profiles can be achieved therefore with minimal calibration of sizing equipment while die design is straightforward. The plastic extrusion design guide is intended to help you optimize your plastic profile design and drive cost out of your part. Extrusion process plastic profile extrusion is a molding method in which plastic resin is continuously melted pushed through a die with the desired cross section a profile and then pulled through a water bath until fully cooled.

The formed plastic can then be fabricated and either cut into multiple parts or wound as a single part. In a plastic matrix they have excellent melt strength and exhibit low die swell. Die design for extrusion can be rather complicated since the size and shape of the extruded product varies from that of the die flow channel. This processing guide gives an extensive introduction into many.

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