The Effects of Processing on Thermoplastics
Advanced high tech industries, such as the Medical, Semiconductor, Aerospace, and Oil & Gas are dynamic, growing, and evolving markets that rely heavily on material specifications to ensure consistency, reliability, and most importantly 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 paper focuses on how the processing of thermoplastics affects physical properties, the theory behind the differences, and availability of various materials for use in prototypes or production. 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. They may even be machined from near net injection molded blanks. In each instance the design engineer must understand how different processing methods may affect the physical properties and ultimately the end use and success of the thermoplastic material.
Authors: Sthanu Mahadev, and Zachary Hanze
Conference: SAMPE Seattle 2017