Polyamide-imides (PAI) are high performance polymers that combine excellent high temperature strength with low temperature toughness and impact strength while offering exceptional chemical resistance as an amorphous polymer to a wide range of common chemicals. They are closely related to two other high temperature aromatic imide polymers,
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This paper is intended to help design engineers and those within the plastics industry supporting them select the process sequence and materials that maximize the performance of service critical parts. A great deal of folklore exists within the plastics community regarding the relative differences between machined and
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Starting with the right size and shape based on final part geometry is critical when working with materials like Torlon®, PEEK and polyimides that are inherently expensive. Did you know that an extra .25” on a diameter can add 25% or more to the cost of your
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High PV bearing applications are tough for even high-performance polymers like Torlon, PEEK and PPS. The reason is simple; frictional heat generated especially by the velocity component of “P x V” does not dissipate as easily as does in inherently more conductive bearing materials (i.e. metals). TheRead more →
Ever hear from a customer… “I just started drilling and I heard a crack” or “I was sawing and melted plastic (swarf) stopped the blade” or “my inspection department found cracks in all my parts”. I can even tell you what the “mill” likely said… “They wereRead more →
Producing parts from extruded stock shapes is preferred when injection molding is not practical, and many times for part performance reasons. Experienced plastics engineers have learned that the performance of a machined part can far exceeds that of an injection molded part, yet a comparison of resinRead more →
