Numerical Study of Modular 5.56 mm Standard Assault Rifle Referring to Dynamic Characteristics

Płatek, Paweł; Damaziak, Krzysztof; Małachowski, Jerzy; Kupidura, Przemysław; Woźniak, Ryszard; Zahor, Mirosław

doi:10.14429/dsj.65.8259

Cited by 14 publications

(6 citation statements)

References 16 publications

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“…It was used to form ballistic panels in spaceships. Recognition of the stress values will allow for improving the numerical design in the phenomena of ballistic resistance [ 43 ]. In addition, the explosive joining process increased the tensile strength by approximately 8% compared with the strength that resulted from the law of mixtures.…”

Section: Discussionmentioning

confidence: 99%

Mechanical Properties Analysis of the AA2519-AA1050-Ti6Al4V Explosive Welded Laminate

et al. 2020

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Explosively welded layered materials made of (a) an AA2519 aluminum alloy (AlCuMgMn + ZrSc), (b) titanium alloy Ti6Al4V and (c) an intermediate layer composed of a thin aluminum alloyed AA1050 layer are considered herein. This study presents test results connected to measurement science including microstructural observations of the material combined with the explosive method, and a basic analysis of the strength properties based on microhardness and tensile tests. Owing to the joint’s special manufacturing conditions, the laminate was subjected to deformation measurements with the digital image correlation (DIC) method. The research was supplemented by the residual stress measurements with the sin2ψ X-ray method based on the diffraction–reflection analysis that was verified by the bore trepanation method.

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Section: Discussionmentioning

confidence: 99%

Mechanical Properties Analysis of the AA2519-AA1050-Ti6Al4V Explosive Welded Laminate

et al. 2020

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“…Earlier works were related to some exact applications or case studies analysis [ 2 , 3 , 4 , 5 ], however, for the most part, it has a form of preliminary analysis with that highlights the fundamental problems that arise during application of parts obtained using AM. Additionally, a lot of applied research is focused on some functional prototypes [ 6 , 7 , 8 , 9 ], in which the final parts are obtained using conventional manufacturing methods. Nowadays, trends in professional AM system development are mostly focused on the manufacturing of final products [ 10 ].…”

Section: Introductionmentioning

confidence: 99%

Wear Analysis of Additively Manufactured Slipper-Retainer in the Axial Piston Pump

et al. 2022

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Additive manufacturing (AM) of spare parts is going to become more and more common. In the case of hydraulic solutions, there are also some applications of AM technology related to topological optimization, anti-cavitation improvements, etc. An examination of all available research results shows that authors are using specialized tools and machines to properly prepare AM spare parts. The main aim of this paper is to analyze the influence of quick repair of the damaged slipper-retainer from an axial piston pump by using an AM spare part. Hence, it was prepared with a 100-h test campaign of the AM spare part, which covers the time between damage and supply of the new pump. The material of the slipper-retainer has been identified and replaced by another material—available as a powder for AM, with similar properties as the original. The obtained spare part had been subjected to sandblasting only to simulate extremely rough conditions, directly after the AM process and an analysis of the influence of the high surface roughness of AM part on wear measurements. The whole test campaign has been divided into nine stages. After each stage, microscopic measurements of the pump parts’ surface roughness were made. To determine roughness with proper measurements, a microscopical investigation was conducted. The final results revealed that it is possible to replace parts in hydraulic pumps with the use of AM. The whole test campaign caused a significant increase in the surface roughness of the pump’s original parts, which was worked with the AM spare slipper-retainer: (1) from Ra = 0.54 µm to Ra = 3.84 µm in the case of two tested pistons; (2) from Ra = 0.33 µm to Ra = 1.98 µm in the case of the slipper-retainer. Despite significant increases in the surface roughness of the pump’s parts, the whole test campaign has been successfully finished without any damages to the other important parts of the whole hydraulic test rig.

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“…Clearly, then, earlier works were connected with some exact application or case studies analysis [2][3][4][5] but mostly those kinds of works had a form of preliminary analysis with highlighting of fundamental problems during application of parts obtained using additive manufacturing. Additionally, a lot of research works connected with the application were focused on functional prototypes [6][7][8][9] where final parts were obtained using conventional manufacturing methods. Present trends in professional AM systems development are mostly focused on the usage of that kind of technology in final products [10].…”

Section: Introductionmentioning

confidence: 99%

Wear Analysis of Additively Manufactured Slipper-Retainer in the Axial Piston Pump

Klimek¹,

Kluczyński²,

Łuszczek³

et al. 2022

Preprint

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The paper contains the results of the 100-hour test campaign of the Additive Manufactured (AM) spare part (retainer – slipper) dedicated for an exact axial piston pump. The material of the retainer-slipper has been identified by using energy dispersive spectroscopy and replaced by other – with similar material properties as the original one. The obtained spare part had been subjected to only one postprocessing type (sandblasting) to analyze the influence of the rough part after the AM process. The whole test campaign has been divided into stages, where after each stage microscopic measurements have been made. During microscopical investigation roughness and geometrical measurements were conducted. The results revealed that it is possible to replace parts in hydraulic pumps with the use of AM. 100-hour test campaign caused about 500% increase in the surface roughness of the pump’s original part which was cooperated with the AM spare retainer-slipper, without any damages to the test system.

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Numerical Study of Modular 5.56 mm Standard Assault Rifle Referring to Dynamic Characteristics

Cited by 14 publications

References 16 publications

Mechanical Properties Analysis of the AA2519-AA1050-Ti6Al4V Explosive Welded Laminate

Mechanical Properties Analysis of the AA2519-AA1050-Ti6Al4V Explosive Welded Laminate

Wear Analysis of Additively Manufactured Slipper-Retainer in the Axial Piston Pump

Wear Analysis of Additively Manufactured Slipper-Retainer in the Axial Piston Pump

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