Proceedings of the XMO Industrial Seminar 2026: Excellence in Manufacturing and Operations
Keywords
Dissimilar material printing; fused filament fabrication; direct ink write; adhesion
Tracks
MULTIFUNCTIONAL AND RESILIENT DESIGNS FOR MANUFACTURING
DOI
10.5703/1288284318675
Abstract
The demand for multi-material additive manufacturing (AM) is increasing due to the complex design requirements needed to make advanced devices for a variety of fields.[MM1.1] Dissimilar Material Printing (DMP) is an extreme form of multi-material printing that involves combining materials that have dissimilar properties (i.e. mechanical, thermal, etc.) and processing requirements. On version of DMP includes integrating Fused Filament Fabrication (FFF) with Direct Ink Write (DIW) to co-print polymers such as thermoplastics and glass bead reinforced photopolymers. Previous research has focused in understanding the effect of print bed holding temperature on interfacial adhesion in FFF/DIW DMP. However, there is still investigation needed to understand how other factors influence interfacial bonding. This work analyzed the effect of volume loading (55, 60, and 65 vol.%) in the DIW ink since it can influence factors such as contact at the interface and cure kinetics. In-situ thermal camera monitoring was used to measure the change in temperature of the polymers during the print process, with a particular focus on the role of volume loading on the UV curing process. Double cantilever beam tests were performed to analyze the fracture toughness. Ultimately, this work shows the effect of volume loadings on adhesion between DIW inks and thermoplastics during the FFF/DIW DMP process and provides a framework to further study co-printed thermoplastic-elastomer interfaces.
The Effect of Particle Fillers on the Adhesion of Co-printed Thermoplastics and Photopolymers using Dissimilar Material Printing
The demand for multi-material additive manufacturing (AM) is increasing due to the complex design requirements needed to make advanced devices for a variety of fields.[MM1.1] Dissimilar Material Printing (DMP) is an extreme form of multi-material printing that involves combining materials that have dissimilar properties (i.e. mechanical, thermal, etc.) and processing requirements. On version of DMP includes integrating Fused Filament Fabrication (FFF) with Direct Ink Write (DIW) to co-print polymers such as thermoplastics and glass bead reinforced photopolymers. Previous research has focused in understanding the effect of print bed holding temperature on interfacial adhesion in FFF/DIW DMP. However, there is still investigation needed to understand how other factors influence interfacial bonding. This work analyzed the effect of volume loading (55, 60, and 65 vol.%) in the DIW ink since it can influence factors such as contact at the interface and cure kinetics. In-situ thermal camera monitoring was used to measure the change in temperature of the polymers during the print process, with a particular focus on the role of volume loading on the UV curing process. Double cantilever beam tests were performed to analyze the fracture toughness. Ultimately, this work shows the effect of volume loadings on adhesion between DIW inks and thermoplastics during the FFF/DIW DMP process and provides a framework to further study co-printed thermoplastic-elastomer interfaces.