Meaning
High-performance thermoplastic polymers offer excellent thermal stability and chemical resistance for critical aerospace and industrial parts. Manufacturing agreements often specify polyetherketoneketone for 3D-printed ducting and brackets because it can withstand high temperatures. This material choice reduces the overall weight of the assembly.
Material Specification
Supplier contracts mandate that the raw polymer resin be sourced from approved chemical manufacturers. If the supplier changes the grade of polyetherketoneketone without the buyer’s written consent, the buyer can reject the entire shipment. This control ensures that the parts meet strict flammability and outgassing standards.
Performance Warranty
Product performance warranties require that the thermoplastic parts are printed or molded within specific temperature and speed ranges. If a component fails in the field and the investigation reveals that the molding parameters were incorrect, the supplier must replace the part and pay for the damage. This provision encourages suppliers to follow the process sheets and ensures that any loss of aircraft dispatch reliability is covered by the component supplier’s insurance.
Supply Risk
Material availability can pose a risk to production schedules because there are only a few certified global producers of this polymer. Purchasing agreements often include a clause requiring the supplier to keep a minimum stock of the raw resin. This buffer prevents production line delays.
