Advanced high-tech industries, such as aerospace and defense, are dynamic, growing, and evolving markets that rely heavily on material specifications to ensure consistency, reliability, and safety. In today’s world, many engineers utilize the internet to choose the right polymeric materials for their applications. Many also utilize the resources of the raw material suppliers that only report the “as produced” pellet data. This presentation focuses on how the processing of thermoplastics affects physical properties, the theory behind the differences, and availability of materials for use in prototypes or production environments. It emphasizes the need for strong material certifications and purchasing standards. Depending upon the volume and size of the needed thermoplastic components; these parts may be produced complete by means of injection molding or machined from extruded or compression molded shapes, or via other methods. In each instance the design engineer must understand how different processing may affect the physical properties and ultimately the end use and success of the thermoplastic material. The presenter will focus on how these processes convert the raw pellets into the final parts. Diagrams that explain the differences in the way test samples are derived will be presented. Charts, graphs, and diagrams of resulting physical properties will be presented.
- Understand the basic differences in thermoplastic material processing
- Understand the affects that different polymer processing methods will have on mechanical properties
- Will be able to eliminate confusion and write a more accurate and meaningful material specification