If producing less than 500 pieces, we then primary ultra-compact the powder into a ‘green’ block before CNC milling. For higher volumes we ultra-high pressure die-stamp or injection mould, producing identical results.
We then fast-sinter using a unique patented secondary compaction technique. This is what gives the homogeneity, added flexural strength, and sets up the optical surface performance.
The first Quality Control step for microcracks and aspect ratios is then made before each piece is marked for tracking and control logistics.
We then prepare the optical surface ready for polishing so that a regulated optical skin thickness is maintained for optimum mirror balance, and then polish to customer requirements.
The pieces are then Quality Controlled for flatness and surface quality before coating with the optimum coating by wavelength.
Finally, the pieces are Quality Controlled once again for surface quality.