Machine tool and assembly-line builder Grob recently introduced the GMP300 Liquid Metal Printing (LMP) machine. The powder-free technology prints near-net-shape aluminum-alloy parts quickly and safely.
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LMP technology builds parts from wire, unlike the more common PBF (powder bed fusion) process that uses powders. Grob says wire reduces material costs and poses no health risks, as do powders, and eliminates additional steps such as the depowdering of parts. And, because LMP is a microcasting process not a welding process, there’s minimal chance of part warping.
The 3-axis GMP300 has a 300- by 300- by 300-mm build volume, positioning accuracy of 0.015 mm, and a maximum axis speed of 30 m/min., and its inert atmosphere protects the workpiece from oxidation.
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