The company says this enables the 3D printer not only to produce high-quality parts, with full density, but also to consume less energy than melt-based processes. MELD deposits are said to be fully dense and do not require a secondary densification process.īy operating at lower temperatures, MELD’s technology is said to avoid material flaws like porosity and hot cracking. The stirring action breaks up individual material grains into smaller sizes, which provides enhanced strength and performance properties, including corrosion and wear resistance, according to the company. The company says the process yields a metallurgical bond between layers with a refined grain structure. In the MELD process, the system forces material through a hollow, roatating tool, stirring the material into the material beneath it. Rather than fuse existing layers of material as in the FSAM process, MELD uses friction-generated heat to deposit new metal feedstock at a high-deposition rate without reaching a melting temperature. MELD’s B8 printer applies a thermomechanical additive manufacturing (AM) process similar to friction stir additive manufacturing (FSAM). MELD technology’s greatest break with traditional AM practices is its reliance on a solid-state approach. How It WorksAt the core of MELD’s system, you find the B8 printer, which resembles a multi-axis CNC machine more than a traditional laser sintering additive manufacturing system. MELD’s technology boasts capabilities that could well sweep aside these barriers, enabling additive manufacturing (AM) to make greater inroads in the industrial sector. Traditional metal printing processes can suffer from spatially restrictive deposition chambers, slow production rates, and undesirable physical properties. Until recently, manufacturers’ efforts to apply 3D printing in large-scale production areas have been thwarted by inherent limitations of the technology. MELD’s B8 printer “stirs” layers together without high heat.
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