Wyniki wyszukiwania - BazTech

Ograniczanie wyników

2 2023

Znaleziono wyników: 2

Liczba wyników na stronie

Wyniki wyszukiwania

Wyszukiwano:
w słowach kluczowych: 4D printing

Sortuj według:

Ogranicz wyniki do:

Alternative Security of the Combat Readiness Recovery Using 3D Printing and Reverse Engineering

Augustyn Sławomir, Kowalski Rafał

Safety & Defense

2023

40--51

Disrupting spare parts supply chains can harm the smooth running of an organization. In the case of military vehicles, weapons or other types of equipment used on the battlefield, this is a serious threat that may result in the inability to continue some tactical operations. An ad hoc way to maintain the ability to take action while the appropriate spare parts are delivered and to improve damaged devices may be to produce the damaged components locally. Such a temporary solution is possible for relatively simple elements whose structure, mechanical properties and principle of operation can be determined on a reverse engineering basis. This article describes the concept of alternative solutions for temporarily repairing damaged devices by producing spare parts in mobile specialized production subunits. This paper characterizes the types of 3D printing, contemporary examples of use in foreign armies, priorities of international alliances related to 3D printing, and a case study of repairing an unmanned aircraft by means of 3D printing. Using the experience and knowledge of foreign armies, adapting the possibilities of 3D printing applications to one's own needs, defining legal regulations and creating properly equipped subunits makes it possible to implement the presented concept. Creating conditions for implementing the described concept facilitates the production of a suitable product range in peace, crisis or conflict situations, which may significantly contribute to increasing the level of readiness of the national defense systems.

The use of moisture-responsive materials in 4D printing

Al Nahari B.B.M.A., Zarbane K., Beidouri Z.

Journal of Achievements in Materials and Manufacturing Engineering

2023

Vol. 119, nr 1

5--13

Purpose: The objective of this research paper is to compile a list of key moisture-sensitive smart materials used in 4D printing. These materials have applications in various fields, including industrial and medical, and the list can be used as a reference for creating 4D-printed sensors and actuators. Design/methodology/approach: The smart materials used in 4D printing are discussed, and a description of each material is given, including its principle, applications and areas of use. Findings: We have discovered a large number of different materials that are sensitive to moisture and have identified those that are most essential for use in 4D printing. Research limitations/implications: According to the results of this research, the moisture-sensitive materials used in 4D printing have very limited use and application, and the majority of these materials are still in the research and development stage. Originality/value: This review article provides researchers interested in using smart materials to exploit 4D printing in the industrial and medical fields, as well as in many other disciplines, with a means to identify the most widely used and prevalent moisture-sensitive materials.