New methods of obtaining materials and structures for light armor protection

Zagirnyak, Мykhaylo; Drahobetskyi, Volodymyr

doi:10.1109/miltechs.2015.7153695

Cited by 31 publications

(6 citation statements)

References 1 publication

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“…then, integrating it under the initial conditions (10), we obtain an asymptotic solution close to the exact one for small R:…”

Section: Methods Of Researchmentioning

confidence: 87%

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Application of intelligently controlled technologies in designing of technological processes for explosive forming of shell parts

Shlyk

2021

TAPR

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The object of research is the processes of pulse metalworking (hydroexplosive, magnetic pulse, electrohydraulic, gas detonation forming, etc.). Among these methods of forming for the production of aircrafts engines parts from cylindrical and conical blanks, the most efficient in terms of its energy capabilities and overall dimensions is explosive. The modern level of theory and practice of metal forming processes allows, on the basis of a systematic approach and control theory, to determine the optimal parameters of plastic forming processes, select the best technical solutions, and create a precondition for the transition to complex automation. The most difficult task of metals forming methods optimizing is to find the best solution among many potentially possible ones, considering the introduced restrictions and efficiency criteria, environmental, economic, technical, ergonomic, and other requirements. The most problematic is that it is impossible to optimize the process of forming post-factum (finishing works, elimination of defects in shape and size, welding of cracks, etc. are required), therefore, when solving optimization problems, the implementation of the feedback principle is required - comparison of the value of the controlled variable, determined by the control program, with the desired value. In general, the processes of metal forming by pressure are characterized by a variety of problems of the theory of optimal control, the solution of which is carried out by methods of mathematical programming. And, although the equipment for pulse processing can have a different design, it necessarily includes structural elements that make it possible to convert the energy of the source and with its help (through the action of a solid body, transmitting medium, or field) to deform the metal of the workpiece. Due to this, in this work, it is proposed to control the quality of the obtained parts by varying the degree of deformation of the workpiece in the process of forming. The result of the work is the development of an integrated intelligent system, with the help of which it is possible to carry out the computer-aided design of almost all pulse-action processes based on the intelligent selection of suitable forming parameters.

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“…then, integrating it under the initial conditions (10), we obtain an asymptotic solution close to the exact one for small R:…”

Section: Methods Of Researchmentioning

confidence: 87%

“…where θ is the explosive time constant [10,11]. The dependence of the time constant θ on the magnitude of the charge and its distribution over the shaping are shown in Fig.…”

Section: Methods Of Researchmentioning

confidence: 99%

Application of intelligently controlled technologies in designing of technological processes for explosive forming of shell parts

Shlyk

2021

TAPR

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“…where l 1 -the length of the punch stroke at the first step; Δh -the addition to the reverse stroke calculated by the G. Backhaus model taking into account the Bauschinger effect [14,[18][19][20][22][23][24][25].…”

Section: Calculationmentioning

confidence: 99%

The assessment of the process of drawing a cylindrical workpiece without pressing with alternating strain of the workpiece flange

et al. 2021

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The development of a method for drawing cylindrical parts without pressing the workpiece flange, which allows reducing the cost of production due to the use of dies without a fit ring and single-acting presses. The performed research revealed that this method results in obtaining cylindrical parts with drawing ratios typical for pressing drawing. In this case, the different thickness of the finished product is several times less compared with the same type of semi-finished products obtained by drawing with a fit ring. Steel, aluminum and copper workpieces were researched. The best results were shown by more plastic materials. This method is not applicable for materials with the less than 0.25 mm thickness.

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“…Titanium is the most expensive of the industrial structural metals. Therefore, increasing the utilization coe cient of the metal, reducing the metal intensity of structures, and reducing waste during the mechanical processing of titanium are particularly relevant issues [3,4].…”

Section: Introductionmentioning

confidence: 99%

The principles of manufacturing complex carbide compounds based on titanium

Shapoval,

Kulynych,

Markov

et al. 2024

Preprint

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Composite hard alloys based on carbides and carbonitrides with a metallic binder are widely used in the metalworking industry and other industrial sectors, both domestically and internationally. This is evidenced by the abundance of scientific research primarily focused on the alloying of carbide and the metallic binder with various additions of refractory metals to improve their operational properties. It's worth noting that the complex carbides were manufactured using the SHS method, which allows for the production of high-quality complex refractory compounds with stable properties, essential for producing composite hard alloys with high operational characteristics. The research included studies on using cheap raw materials, i.e., titanium sponge waste, for producing complex (Ti-W, Ti-Cr) carbide compounds. In Ukraine, there is no technical solution for producing titanium carbide and complex titanium-containing carbide using titanium sponge waste, which is highly relevant. The work studied the impact of the composition of titanium sponge waste, its dispersion, and the amount of impurities on the technological regimes for manufacturing complex carbides and their properties

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New methods of obtaining materials and structures for light armor protection

Cited by 31 publications

References 1 publication

Application of intelligently controlled technologies in designing of technological processes for explosive forming of shell parts

Application of intelligently controlled technologies in designing of technological processes for explosive forming of shell parts

The assessment of the process of drawing a cylindrical workpiece without pressing with alternating strain of the workpiece flange

The principles of manufacturing complex carbide compounds based on titanium

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