Accepted Manuscript Title: Improving the filament weld-strength of Fused Filament Fabrication products through improved interdiffusion Authors: Yee Song Ko, Denis Herrmann, Oliver Tolar, Wilfried J. Elspass, Christof Br¨ andli PII: S2214-8604(19)30320-3 DOI: https://doi.org/10.1016/j.addma.2019.100815 Article Number: 100815 Reference: ADDMA 100815 To appear in: Received date: 18 March 2019 Revised date: 15 May 2019 Accepted date: 28 July 2019 Please cite this article as: Song Ko Y, Herrmann D, Tolar O, Elspass WJ, Br¨ andli C, Improving the filament weld-strength of Fused Filament Fabrication products through improved interdiffusion, Additive Manufacturing (2019), https://doi.org/10.1016/j.addma.2019.100815 This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain.