6K | 9,272 followers on LinkedIn. 6K’s UniMelt® microwave plasma produces advanced materials for additive manufacturing and battery storage | 6K’s UniMelt® microwave plasma develops advanced materials across a wide spectrum of markets including metal powders for additive manufacturing and advanced materials for battery storage. It’s positioned to replace today’s traditional processes, which are environmentally unfriendly. 6K overcomes these limitations, delivering a significantly lower cost, more sustainable approach. In additive manufacturing, the UniMelt utilizes materials like CNC scrap and turns it into premium powder.