Journal
JOURNAL OF ADVANCED JOINING PROCESSES
Volume 3, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.jajp.2021.100046
Keywords
Joining; Polymers; Processing techniques; Numerical model; Adhesive bonding; Welding; FFF; Additive manufacturing AM
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This study aims to assess the feasibility of hybrid weld-bonded joints and found that the welding process is the most promising joining process, especially when directly integrated into a mull material additive manufacturing process.
This work aims to explore innovative joining processes for additively manufactured components, and, in particular, to assess the feasibility of hybrid weld-bonded joints by comparing their performance with the baseline bonded and welded joint configurations. The novelty of the proposed solution lies in the fact that welding is achieved using a 3D printed material with conducive filaments, a solution derived from the use of embedded 3D printed circuits (direct printing) in the AM components. Direct printing can be used to obtain an accurate local control of the thermal cycle and to overcome geometrical limitations inherent to the process, as for example the need of access for the welding tools. The feasibility of the hybrid weld-bonded joint was assessed and, while for adhesive bonding the use of dedicated surface treatments was found to be necessary to improve the joint performance, the welding process was determined to be the most promising joining process, especially when directly integrated into a mull material additive manufacturing (MMAM) process.
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