Lattice material infiltration for hybrid metal-composite joints: Manufacturing and static strenght

Enhancing the Robustness of Hybrid Metal-Composite Connections through 3D printed Micro Penetrative Anchors

“…When the wet prepreg comes in contact with the surface, the resin ows around these particles, increasing the contact area and forming effective particle hooks within the adhesive. As observed by [21,42] on different alloys, this interlock ultimately leads to a stronger bond between AMPO M789 and epoxy, outperforming pure adhesive strength alone without requiring additional surface treatment methods [43]. More signi cant resin grafts with pulled-out bers (Fig.…”

“…Additionally, the rapid solidi cation of molten metal can lead to partially fused particles and surface defects, as described in [20]. Numerous authors have shown that these imperfections deliver added value in multi-material joining by establishing supplementary interlocking mechanisms between the metal and composite interfaces, signi cantly enhancing the joint's load-bearing capacity [13,21,22]. The insertion of additively manufactured 3D pins into a composite substrate can lead to defects such as in-plane ber crimping and the formation of resin-rich regions [23,18], similar to those encountered in z-pinning, which is an established technique in the eld of composite materials [24,25]; these defects are localized in a limited region surrounding the pin, impacting the original ber-polymer distribution and locally affect the mechanical properties of the substrate [26,27].…”

Composition regulation of composite materials in laser powder bed fusion additive manufacturing

“…The evolutions of average apparent densities of the powder beds in Fig. 6(a) indicate that the pronounced apparent density negative segregation occurs in the powder beds using optimal parameters, among which the slight gradient structure can be generated under the combined conditions (1,3,4), while the big gradient structure (i.e., the big composition difference) occurs under the optimized condition (2). And the segregation behavior in the powder bed when V = 0.1 m/s is weak.…”

“…Metal materials play an important role in the history of human development due to their marvelous properties. However, the requirements for the comprehensive performance of materials become more prominent with the development of industrial technology, and the elemental metal material seems unlikely to satisfy the increasingly severe challenges [1][2][3]. Incorporating reinforced phase particles (e.g., oxides, intermetallics, nitrides, carbides, and borides, etc.)…”

Advanced Hybrid Joining for Needle-punched rCF Composite-Metal Structures via Compression Moulding Process

“…Recently, the state-of-the-art advanced hybrid joining processes were frequently reported. Many researchers developed thermo-mechanical interlocking features by making small pins or lattices at metal surface [12,13]. Such interface locking enables a significant delay in damage progression under cyclic loading, but metal pins damaged polymeric partner significantly during debonding.…”