Processing windows for Ti-6Al-4V fabricated by selective electron beam melting with improved beam focus and different scan line spacings

Pobel C, Osmanlic F, Lodes M, Wachter S, Körner C (2019)


Publication Type: Journal article

Publication year: 2019

Journal

Book Volume: 25

Pages Range: 665-671

Journal Issue: 4

DOI: 10.1108/RPJ-04-2018-0084

Abstract

Purpose: Selective electron beam melting (SEBM) is a highly versatile powder bed fusion additive manufacturing method. SEBM is characterized by high energy densities which can be applied with nearly inertia free beam deflection at high speeds (<8.000 m/s). This paper aims to determine processing maps for Ti-6Al-4V on an Arcam Q10 machine with LaB6 cathode design. Design/methodology/approach: Scan line spacings of 100, 50 and 20 µm in a broad parameter range, focusing on high deflection and build speeds are investigated. Findings: There are broad processing windows for dense parts without surface flaws for all scan line spacings which are defined by the total energy input and the area melting velocity. Originality/value: The differences and limitations are discussed taking into account the beam properties at high beam energy and velocity as well as evaporation related loss of alloying components.

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How to cite

APA:

Pobel, C., Osmanlic, F., Lodes, M., Wachter, S., & Körner, C. (2019). Processing windows for Ti-6Al-4V fabricated by selective electron beam melting with improved beam focus and different scan line spacings. Rapid Prototyping Journal, 25(4), 665-671. https://dx.doi.org/10.1108/RPJ-04-2018-0084

MLA:

Pobel, Christoph, et al. "Processing windows for Ti-6Al-4V fabricated by selective electron beam melting with improved beam focus and different scan line spacings." Rapid Prototyping Journal 25.4 (2019): 665-671.

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