Weed Land

Hecht, Peter

doi:10.1525/9780520958241

Cited by 11 publications

(2 citation statements)

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“…[69] Fiber Lasers: A fiber laser is a variation of the standard solidstate lasers in which the laser is emitted from the core of a fiber (about 9-50 μm) doped with Yb or Er. It has a wavelength in the range of 1030-1080 nm (Yb) and 1530-1620 nm [73] and power output of 1-10 kW. The near-IR wavelengths of fiber lasers enable a better absorption rate by metals, making them ideal for AM of metallic parts.…”

Section: Energy Sourcesmentioning

confidence: 99%

Laser‐Based Additive Manufacturing Technologies for Aerospace Applications

2019

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Additive manufacturing (AM) is a transformative technology that has rapidly grown over the past decade. AM processes build parts layer by layer and have found applications in the aerospace, biomedical, and automotive fields. The technology holds particular promise for the aerospace industry due to the reduced process time, weight savings of parts, and opportunities for new material development. Herein, a review of laser-based AM processes, existing AM systems, and aerospace parts being fabricated is presented. It further explores the material properties and microstructure of printed samples with both powder bed fusion and direct energy deposition processes. The benefits and challenges associated with the widespread use of the technology are discussed with emphases on the aerospace sector. Finally, the steps required for parts produced by AM processes to become certified for use in aerospace applications are presented.

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Section: Energy Sourcesmentioning

confidence: 99%

Laser‐Based Additive Manufacturing Technologies for Aerospace Applications

2019

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“…"While the US successfully exported its prohibitionist policy to the rest of the world, the federal government has had significant difficulty in maintaining its policy domestically" (Blickman & Jelsma, 2009, p.15 A c c e p t e d M a n u s c r i p t 12 legalisation could generate substantial popular support (Hecht, 2014 (Room, 2013). Thereby, Colorado and Washington State became the first jurisdictions in the world with commercial production and wholesale distribution of recreational cannabis (Hawken, Caulkins, Kilmer, & Kleiman, 2013).…”

Section: Domestic Us Cannabis Reformsmentioning

confidence: 99%