Additive Manufacturing (AM) of Metallic Alloys

The introduction of metal AM processes in such industrial sectors as the aerospace, automotive, defense, jewelry, medical and tool-making fields, has led to a significant reduction in waste material and in the lead times of the components, innovative designs with higher strength, lower weight, and fewer potential failure points from joining features. This Special Issue on “Additive Manufacturing (AM) of Metallic Alloys” contains a mixture of review articles and original contributions on some problems that limit the wider uptake and exploitation of metals in AM

Special Issue on “Additive Manufacturing Technologies and Applications”

Additive Manufacturing (AM) is a well-known technology, first patented in 1984 by the French scientist Alain Le Mehaute [...

Development of a ROV titanium manipulator for light work class ROV vehicles

This paper shows the development of a high technical equipment to be used as tooling of submersible ROV (Remote Operated Vehicles) for offshore operations, particularly the design and fabrication by Additive Manufacturing (AM) of a Titanium Manipulator for ROVs. From the initial concept and design until a new formed company “TITANROB”, this document shortly describes the fabrication of hydraulic titanium manipulators for mid size ROV vehicles, the TitanRob series M501, G500 and the M700.Peer Reviewe

Development of a ROV titanium manipulator for light work class ROV vehicles

This paper shows the development of a high technical equipment to be used as tooling of submersible ROV (Remote Operated Vehicles) for offshore operations, particularly the design and fabrication by Additive Manufacturing (AM) of a Titanium Manipulator for ROVs. From the initial concept and design until a new formed company “TITANROB”, this document shortly describes the fabrication of hydraulic titanium manipulators for mid size ROV vehicles, the TitanRob series M501, G500 and the M700.Peer Reviewe

A Review of Preparation and Characterization of Additively Manufactured Stainless Steel

في عالم اليوم، يعد التصنيع بالإضافة طريقة معروفة لإنشاء نماذج ثلاثية الأبعاد، إما من المعادن أو السيراميك أو البلاستيك أو مزيج من هذه المواد. يرتبط التصنيع بالإضافة بسلسلة من دورات التسخين والتبريد السريعة، فضلاً عن التدرجات الكبيرة في درجات الحرارة، مما يؤدي إلى تطوير تواريخ حرارية معقدة، والتي لها تأثير مباشر على الهياكل الدقيقة للمواد الناتجة. نظرًا لطبيعة هذه العملية الديناميكية والبعيدة عن التوازن، تظهر ميزات هيكلية مجهرية مختلفة. على سبيل المثال، من المحتمل أن تحدث تغييرات في خصائص التآكل للفولاذ المقاوم للصدأ المصنوع بتقنية الاضافة، والتي تتمتع بخصائص ميكانيكية فائقة ومقاومة للتآكل عند تصنيعها باستخدام طرق إنتاج أخرى. نظرًا لأن مثل هذه التعديلات غير مفهومة تمامًا في هذا الوقت، فإن التناقضات والاختلافات في الأدبيات المتعلقة بسلوك التآكل للفولاذ المقاوم للصدأ المصنوع مضافا تظهر بانتظام. يعد تحضير وتوصيف الفولاذ المقاوم للصدأ المصنوع مضافًا موضوع هذا العمل، والذي يوفر تقييمًا نقديًا. فيما يتعلق بإنتاج الهياكل المعدنية الضخمة بمعدلات ترسيب عالية وبتكلفة رخيصة، فقد برز التصنيع بالإضافة السلكي كطريقة قابلة للتطبيق. تستعرض هذه المقالة بعض طرق التصنيع بالإضافة المستخدمة في الغالب مع المواد المعدنية مع التركيز على التصنيع بالإضافة السلكي  من الفولاذ المقاوم للصدأ.In today's world, ADDITIVE MANUFACTURING (AM)  is a well-known method for creating true three-dimensional objects, either out of metals, ceramics, plastics, or a combination of these materials. ADDITIVE MANUFACTURING (AM)  is connected with a series of rapid heating and cooling cycles, as well as substantial temperature gradients, which result in the development of complicated thermal histories, which have a direct impact on the resulting microstructures. Due to the nature of this dynamic and far-from-equilibrium process, different microstructural features emerge. For instance, these are likely to induce changes in the corrosion characteristics of ADDITIVE MANUFACTURING (AM)  stainless steels, which have superior mechanical properties and corrosion resistance when manufactured using other production methods. Because such modifications are not fully understood at this time, inconsistencies and conflicts in the literature on the corrosion behaviour of ADDITIVE MANUFACTURING (AM)  stainless steels are regularly seen. The preparation and characterization of additively made stainless steel is the subject of this work, which provides a critical assessment. In terms of producing huge metallic structures at high deposition rates and cheap costs, WIRE ARC ADDITIVE MANUFACTURING  (WAAM)  has emerged as a viable method. This article reviews some ADDITIVE MANUFACTURING (AM)   methods used mostly with metallic materials focusing on the WIRE ARC ADDITIVE MANUFACTURING  (WAAM)  of stainless steel

Additive Manufacturing (AM) and Nanotechnology: Promises and Challenges

The narrow choice of materials used in Additive Manufacturing (AM) remains a key limitation to more advanced systems. Nanomaterials offer the potential to advance AM materials through modification of their fundamental material properties. In this paper, the authors provide a review of available published literature in which nanostructures are incorporated into AM printing media as an attempt to improve the properties of the final printed part. Specifically, we review the research in which metal, ceramic, and carbon nanomaterials have been incorporated into AM technologies such as stereolithography, laser sintering, fused filament fabrication, and three-dimensional printing. The purpose of this article is to summarize the research done to date, to highlight successes in the field, and to identify opportunities that the union of AM and nanotechnology could bring to science and technology.Mechanical Engineerin

The state of the responsible research and innovation programme: A case for its application in additive manufacturing

The file attached to this record is the author's final peer reviewed version. The Publisher's final version can be found by following the DOI link.Many of the ethical issues of additive manufacturing (AM) are not well known or understood, and there remains a policy vacuum that needs to be addressed. This paper aims to describe an approach that has been applied successfully to other emerging technologies, referred to as the responsible research and innovation (RRI) framework programme. A case is then made for the application of this approach in the AM industry with an illustration of how it might be used

Additive Manufacturing: Opportunities and Challenges for Functional Magnetic Materials

Additive manufacturing (AM), also known as 3D printing, is transforming manufacturing due to a highly digital approach, the ability to near-net shape manufacture highly complex internal and external shapes of nearly any material, and targeted pore and grain microstructure (thus, properties)

Interlocking Print Patterns

A new method for fastening materials together in additive manufacturing (AM) is proposed. The method can be performed by a software program such as a slicing program for preparing a design for printing. In our research we used an FFF printing technique to validate the new method