Additive Manufacturing Materials

Victrex, Lancashire, UK has, developed a high-strength material for laser sintering (LS) that attains lower refresh rates, resulting in improved recycling for unsintered powder. Another material is a filament with better Z-strength than existing polyaryletherketone (PAEK) materials and better printability for filament fusion (FF). A first generation of PAEK material for LS can only be recycled in a very low extent and required nearly full refresh of the printing bed with new powder, and PEEK filaments available for FF have poor interlayer bonding, leading to a loss in Z-strength. The new polymer grades have shown encouragingly low refresh rates (improves recycle for unsintered powder) with similar mechanical properties in LS, and good mechanical properties and printability in FF.

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Medical Design Briefs Magazine

This article first appeared in the October, 2018 issue of Medical Design Briefs Magazine.

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