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Developing an improved approach to teaching materials-science aspects of additive manufacturing

Dr Bandar AlMangour | Harvard University

Developing an improved approach to teaching materials-science aspects of additive manufacturing

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Additive manufacturing (AM), or 3D printing, is the future of manufacturing. However, the physics underlying AM is complex, with major differences between AM and traditional manufacturing methods, leading to greater epistemic uncertainty in defining the boundary conditions. This has prevented the rapid adoption of AM into industry. To resolve this situation, there is an urgent need for interdisciplinary scientific enterprises to improve existing knowledge, mainly on energy interaction and ensuring part qualification. This study focuses on developing an AM-related curriculum to introduce aspects of common AM technologies and their fundamental principles and specifications.
This paper aims to employ innovative interdisciplinary research to provide a comprehensive vision of the challenges involved in adopting AM and possible solutions. Emphasis is on the process-structure-property relationship and important AM applications in the biomedical, aerospace, automotive, tooling, and food printing industries, as well as 3D printing in construction. Furthermore, this paper explores "design for AM with material site-specific properties" and easily accessible tools for rapid optimization and sustainability. Transforming data into textbooks is the current challenge in this field.
Novel, advanced technologies such as micro-scale manufacturing, functional materials (i.e., electronics or optical materials), lightweight structures, 3D-vascularized tissues, bio-printing, and high throughput printing of multi-phase materials are discussed. In addition, there is a comprehensive overview of software systems and supporting technologies (such as vacuum casting, investment casting, plating, infiltration, and hot isostatic pressing). Contributions from leading researchers, animated illustrations, recent developments, and trends are included. The ASTM, SI, and other standards have also been considered.
This paper can benefit graduates, senior undergraduates, and post-graduate fellows majoring in the mechanical, manufacturing, and material sciences and engineering, as well as practitioners and researchers in the manufacturing industry who are working on product design and materials science. This paper will hold theoretical appeal for those interested in CAD/CAM.