3D Printing Metal Parts Quickly and Flexibly The emergence of 3D printing/additive manufacturing technology as a dynamic growth industry has important impacts on lasers, which are the predominant heat source used in the process. Trumpf Inc. (Farm- ington, CT) is expanding its technology product range in additive manufactur- ing with the introduction of its TruPrint 1000, the latest solution in laser metal fusion (LMF), which gives the ability to build up a component layer by layer. It has also continued developing its laser metal deposition (LMD) process, which provides the ability to add volume and structures/features to existing parts. Trumpf has continuously improved its process first established 15 years ago and offers a complete package for industrial 3D printing, including the laser beam source, machine powder, services and application consulting. The new TruPrint 1000 uses a laser and metallic powder to build any desired component, based on data supplied directly by a CAD program. LMF systems create the component, layer by layer, from metal powders with grain sizes as small as 20 µm. Additive manufacturing technology is well-suited for parts that are complex in geometry, such as those with internal channels and hollow spaces, and for manufacturing individual parts or short production runs economically. The compact LMF unit is a perfect fit for job shops, medical or dental customers, or for R&D environments. It can generate parts that are a maximum of 100 mm in diameter and 100 mm in height. The user interface with touch-screen control steps the operator intuitively through the individual phases of the process. All the components, including the laser, optics, process enclosure, filter unit and control cabinet, are integrated into the compact housing of the TruPrint 1000.
The supply cylinder, construction chamber, and the over-
flow receiver are all aligned inside the enclosure. The supply cylinder contains the stainless steel, aluminum or any weld- able material in powdered form. During the build, a layer of
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