Additive Manufacturing

JUL 2018

ADDITIVE MANUFACTURING is the magazine devoted to industrial applications of 3D printing and digital layering technology. We cover the promise and the challenges of this technology for making functional tooling and end-use production parts.

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JULY 2018 Additive Manufacturing IMTS 2018 ON DISPLAY 52 Metal 3D Printer Saves Weight, Minimizes Postprocessing Big Systems displays Markforged's Metal X 3D printer, which is designed to avoid the safety risks of powder-based printers and to be easily installed on shop floors. It is suit- able for prototypes, tooling and fixtures, and short-run prints. It produces parts accurate to 50 microns, the company says. Parts are printed with honey- comb interiors to save weight without compro- mising strength, with good surface finish said to min- imize postprocessing. The printer comes with compli- mentary software to import CAD designs and select print options. Turnkey engi- neering and 3D production support services can assist with design and production of parts. Big Systems | West, Level 3, Booth 432408 Nozzle Reduces Pores, Cracks in Laser Cladding The AL-Flow Powder annular gap nozzle from Alpha Laser contributes to uniform melting in laser cladding additive manufacturing. With low dilution, it reduces pores and cracks in production layers and can achieve a range of layer thicknesses. The nozzle enables the application of high-quality wear protection layers and the joining of different materials to increase the service life of compo- nents. Suitable uses include hard coating (HRC 60) and corrosion or abrasion protection with a nickel alloy embedded with tungsten carbide particles. The AL-Flow Powder nozzle is suitable for repair operations in which pre-programmed geometries are filled in or built up. It also facilitates large-scale material application and powder deposit welding for gap bridging during joining. The nozzle measures 100 × 143 × 170 mm and weighs 2.3 kg. It is continuously water-cooled with a quick-change connection, and features a shielding gas connector tube 6 mm in diameter. The nozzle's 7-kW laser offers a maximum laser spot diameter of 3 mm, with focal distance of 150 mm and aperture 35 mm in diameter. The nozzle features integrated powder dispersion and functions with grain sizes ranging from 30 to 150 microns. Alpha Laser- US | North, Level 3, Booth 236048 Aluminum Alloy for 3D Printing Combines Benefits with Familiarity Elementum 3D's AL6061-RAM2% product is an aluminum 6061 powder material said to achieve properties compa- rable to wrought 6061-T6 on existing laser powder-bed fusion equipment. Elementum 3D's reactive additive man- ufacturing (RAM) technology has enabled the printing of production-quality 6061. Aluminum 6061 is a commonly used alloy in the aero- space, automotive and defense industries. According to the company, advantages of the product include cost-effective print speeds and quality surface finish, combined with the familiarity of 6061. Elementum 3D | West, Level 3, Booth 432403

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