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1. (WO2018102754) STRESS RELAXATION IN ADDITIVELY MANUFACTURED PARTS

Pub. No.:    WO/2018/102754    International Application No.:    PCT/US2017/064317
Publication Date: Fri Jun 08 01:59:59 CEST 2018 International Filing Date: Sat Dec 02 00:59:59 CET 2017
IPC: B22F 3/105
B33Y 10/00
B33Y 70/00
Applicants: MARKFORGED, INC.
Inventors: MARK, Gregory, Thomas
Title: STRESS RELAXATION IN ADDITIVELY MANUFACTURED PARTS
Abstract:
To build a part with a deposition-based additive manufacturing system using a polymer-based binder of a composite feedstock, a first tool path of a perimeter contour segment and a second tool path that is parallel and adjacent are deposited in retrograde directions to produce stress-offsetting adjacent paths, where directions of residual stress within the polymer-based binder of the composite are opposite in the stress-offsetting adjacent path.