Junction growth and interdiffusion during ultrasonic additive manufacturing of multi-material laminates

Ward, Austin A.; Cordero, Zachary C.

doi:10.1016/j.scriptamat.2019.10.004

Cited by 22 publications

(10 citation statements)

References 28 publications

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“…The present conclusions align closely with our recent work on ultrasonic additive manufacturing of foils, [ 67,113 ] which showed that thermal softening drives junction growth and welding. That work also established how the different temperature and pressure dependences of junction growth and grain growth give rise to a range of processing conditions that impart strong interlayer bonding while minimizing coarsening.…”

Section: Discussionsupporting

confidence: 92%

Thermally Activated Jamming in Ultrasonic Powder Compaction

et al. 2020

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Herein, the role of thermal softening in ultrasonic powder compaction is assessed by comparing the densification behaviors of nominally pure Cu and a thermally stable CuTa alloy. These materials have similar thermal properties, but pure Cu softens at much lower temperatures than does the CuTa alloy. Using a specialized ultrasonic powder compaction setup, in situ measurements of relative density, sonotrode power consumption, and temperature are collected, which together provide a time‐dependent geometric hardening parameter that reflects the structure of the compact. The geometric hardening data for the pure Cu powder reveal three distinct stages of densification: an initial particle rearrangement stage; a jamming transition where strong junctions develop between particles; and a final stage characterized by compatible plastic deformation. By contrast, the geometric hardening data for the thermally stable CuTa powder show that it remains a weak fluidized granular medium, despite experiencing higher normal pressures, oscillation amplitudes, and temperatures. The contrasting behaviors of the Cu and the CuTa powders suggest that a thermally activated jamming transition drives interparticle junction growth and densification in ultrasonic powder compaction.

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Section: Discussionsupporting

confidence: 92%

Thermally Activated Jamming in Ultrasonic Powder Compaction

et al. 2020

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“…Other areas using starting material as a sheet are challenging, since new material examples are not usually in the form of sheets. On the metal side, the ability to combine different metals in different layers would open new potential, for example, by adding functional possibility through bi-metal parts for certain implants and medical devices [ 119 ]. Sheet lamination devices are quite rare, and there are only two different vendors in the market: metal-based Fabrisonic and paper-based Mcor, which seems to be in receivership status.…”

Section: Discussionmentioning

confidence: 99%

Additive Manufacturing Processes in Medical Applications

2021

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Additive manufacturing (AM, 3D printing) is used in many fields and different industries. In the medical and dental field, every patient is unique and, therefore, AM has significant potential in personalized and customized solutions. This review explores what additive manufacturing processes and materials are utilized in medical and dental applications, especially focusing on processes that are less commonly used. The processes are categorized in ISO/ASTM process classes: powder bed fusion, material extrusion, VAT photopolymerization, material jetting, binder jetting, sheet lamination and directed energy deposition combined with classification of medical applications of AM. Based on the findings, it seems that directed energy deposition is utilized rarely only in implants and sheet lamination rarely for medical models or phantoms. Powder bed fusion, material extrusion and VAT photopolymerization are utilized in all categories. Material jetting is not used for implants and biomanufacturing, and binder jetting is not utilized for tools, instruments and parts for medical devices. The most common materials are thermoplastics, photopolymers and metals such as titanium alloys. If standard terminology of AM would be followed, this would allow a more systematic review of the utilization of different AM processes. Current development in binder jetting would allow more possibilities in the future.

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“…On the one hand, it is limited by the technology itself, and on the other hand, it is limited by the performance of parts [36]. Most of the current research is to use UAM additive technology to manufacture parts composed of different materials and to study their forming mechanism [126,127]. The manufacturing of complex structures is generally the production of parts with complex channels.…”

Section: Prospect and Challenge Of 3d Printing In Pure Coppermentioning

confidence: 99%

A Review on Additive Manufacturing of Pure Copper

Jiang

Zhang

et al. 2021

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With the development of the aerospace and automotive industries, high heat exchange efficiency is a challenge facing the development of various industries. Pure copper has excellent mechanical and physical properties, especially high thermal conductivity and electrical conductivity. These excellent properties make pure copper the material of choice for the manufacture of heat exchangers and other electrical components. However, the traditional processing method is difficult to achieve the production of pure copper complex parts, so the production of pure copper parts through additive manufacturing has become a problem that must be overcome in industrial development. In this article, we not only reviewed the current status of research on the structural design and preparation of complex pure copper parts by researchers using selective laser melting (SLM), selective electron beam melting (SEBM) and binder jetting (BJ) in recent years, but also reviewed the forming, physical properties and mechanical aspects of pure copper parts prepared by different additive manufacturing methods. Finally, the development trend of additive manufacturing of pure copper parts is also prospected.

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Junction growth and interdiffusion during ultrasonic additive manufacturing of multi-material laminates

Cited by 22 publications

References 28 publications

Thermally Activated Jamming in Ultrasonic Powder Compaction

Thermally Activated Jamming in Ultrasonic Powder Compaction

Additive Manufacturing Processes in Medical Applications

A Review on Additive Manufacturing of Pure Copper

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