Generolo Jono Žemaičio Lietuvos karo akademija

Using of 3D printed spare parts for Navy supply supported by mentioned inspection meets the requirement for enhancing the logistic performance by provide to military end-users possibilities to produce spare parts using additive manufacturing solutions, particularly in the context of overseas operations, that can be easily presented with several examples. But with application of additive manufacturing in naval operations to product different objects in a variety of materials in an open water environment, we need to start with development of innovative solutions for intelligent inspection of products of selective laser melting from metallic powders is a topic of great importance in nowadays if we talk about real strategies in logistic support including overseas naval outposts support equipment and the reverse engineering of obsolescent parts such as many of those that could be found on the perspective sea platforms with particular focus on maritime littoral and high sea areas—demonstrate advantages of additive manufacturing.

New calls for global security today, since operations the era of uncontested military superiority of western forces is fading and western response can't simply be to avoid operating in these environments but we should start to think about essential to protection of our potential in industry, population and infrastructure. It brings us back to refitting of rock massifs for fallout shelters requires an increasingly better knowledge of the composition, internal structure, geometry and depth extent of the individual rocks. This paper focuses on the long-term strength of a wide range of rock types that can be refitted for shelters.

The paper contains the results of a non-destructive laser ultrasound internal structure analysis made on specially prepared friction stir welded joints made of aluminum samples. The process was conducted using four different groups of welding parameters. Different tool rotation speeds and tool traverse speeds were used. The main purpose of the research was to analyze the joint quality using a non-destructive laser amplified ultrasound method. A microstructure analysis was also conducted to compare the results of both tests.