Preprint Article Version 1 This version is not peer-reviewed

Combination of Laser Material Deposition and Laser Surface processes for the manufacture of sculptured surface components

Version 1 : Received: 27 June 2018 / Approved: 27 June 2018 / Online: 27 June 2018 (15:12:32 CEST)

A peer-reviewed article of this Preprint also exists.

Arrizubieta, J.I.; Cortina, M.; Ruiz, J.E.; Lamikiz, A. Combination of Laser Material Deposition and Laser Surface Processes for the Holistic Manufacture of Inconel 718 Components. Materials 2018, 11, 1247. Arrizubieta, J.I.; Cortina, M.; Ruiz, J.E.; Lamikiz, A. Combination of Laser Material Deposition and Laser Surface Processes for the Holistic Manufacture of Inconel 718 Components. Materials 2018, 11, 1247.

Journal reference: Materials 2018, 11, 1247
DOI: 10.3390/ma11071247

Abstract

The present work proposes a novel manufacturing technique based on the combination of Laser Metal Deposition, Laser Beam Machining and Laser Polishing processes for the complete manufacturing of complex parts. Therefore, the complete process is based on the application of a laser heat source both for the building of the preform shape of the part by additive manufacturing and for the finishing operations. Their combination enables to manufacture near-net-shape parts and afterwards, remove the excess material via laser machining, which has resulted to be capable of eliminating the waviness resulting from the additive process. Besides, surface quality is improved via laser polishing to reduce the roughness of the final part. Therefore, conventional machining operations are eliminated, what results in a much cleaner process. In order to validate the capability of this new approach, the dimensional accuracy and surface quality of the resulting parts are evaluated. The process has been validated on an Inconel 718 test part, where a previously additively built up part has been finished by means of laser machining and laser polishing.

Subject Areas

laser; additive manufacturing; laser beam machining; laser polishing; waviness; roughness; Inconel 718

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