Material advantages of machining PEEK include: There are numerous advantages to PEEK machining, and these can be broken down into two categories: the inherent material advantages of PEEK, and the specific process advantages of using a CNC machine for machining PEEK material. It is typically classified as either industrial-grade or medical-grade. The high-performance PEEK plastic is available in granular form, in filament for 3D printing, and in bar / rod form for CNC machining. But with a melting point of 343☌, PEEK can operate at higher temperatures: it can be used continuously to 250☌ and in hot water or steam without permanent loss in physical properties. PEEK grades offer chemical and water resistance similar to PPS. The semi-crystalline material is used for a wide range of industrial parts and components, exhibiting excellent strength, wear resistance, and abrasion resistance, and retaining its properties even at high temperatures. PEEK, or polyether ether ketone, is a high-performance engineering thermoplastic and part of the PAEK family of materials. This article goes over the fundamentals of machining PEEK: the material properties of PEEK, the advantages of machining PEEK, common applications of machining PEEK, and tips for how to get the most out of machined PEEK parts. Despite being regularly used for injection molding and 3D printing, PEEK has a high melting point, which would indicate its suitability for subtractive processes like CNC machining - although PEEK machining comes with its own set of challenges. The plastic has excellent mechanical properties and a high level of resistance to corrosive substances, making it highly desirable for manufacturers across the world. PEEK is a popular thermoplastic polymer found in objects as diverse as medical implants and electrical cable insulation.
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