GE Additive Introduces Arcam EBM Spectra H
The electron beam melting (EBM) melting system offers a large build volume and is designed to handle high-heat and crack-prone materials.
GE Additive’s Arcam EBM Spectra H metal additive manufacturing system is designed to handle high-heat and crack-prone materials, complementing the company’s existing electron beam melting systems. Initially, the Arcam EBM Spectra H will support both titanium aluminide (TiAl) and Alloy 718. Additional Ni-super alloys will be supported from 2019.
The Arcam EBM Spectra H incorporates features and enhancements intended to drive down cost by increasing the productivity of the system. It offers a 39 percent larger build volume, increased from 200 × 200 380 mm to 250 mm in diameter by 430 mm. According to GE Additive, the build speed is as much as 50 percent faster. A 6-kW HV unit means that all pre- and post-heating steps can be accomplished in half the time compared to other EBM machines. Improved heat management via a moveable heat shield keeps heat in the build area, and an improved layering procedure reduces the need for heating, saving as much as 5 hours in a full-height build.
Arcam xQam automatic calibration technology improves the position and focus accuracy without manual calibration, reducing the process from 3-4 hours to 15 minutes. Other automation technologies include an automated, self-dosing sieve and hopper filling station. The automatic powder hoppers are self-closing when lifted and self-opening when mounted in the machine for simplified setup. The closed powder handling system and dust-tight environment maintain batch integrity and reduces the risk of contamination, while protecting the operator from the powder.
“This new system shows our commitment to developing industry-leading additive machines, materials, and services. We remain focused on accelerating innovation across sectors and helping the world work smarter, faster and more efficiently,” says Jason Oliver, president and CEO, GE Additive.
The new system is available to pre-order. It will be manufactured at Arcam’s plant near Gothenburg, Sweden with expected delivery from Q4 2018 onwards.
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