Innovation and Technology Transfer for Business Development

Ungureanu, Miorița; Pop, Nicolae

doi:10.1016/j.proeng.2016.06.697

Cited by 42 publications

(24 citation statements)

References 1 publication

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“…From a design perspective, the challenge of additive manufacturing is to understanding the limitations and opportunities of these new processes and to use them in the right applications. [16] Authors in the article have tried to point on some effects that influence the manufacturing of regular porous structures in spite of the fact that input technological parameters were set the same as the default parameters of the machine. These parameters are: geometry, slope of the sample and its positioning during laser sintering.…”

Section: Resultsmentioning

confidence: 99%

Influence of the volume ratio of solid phase on carrying capacity of regular porous structure

2017

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Abstract. Direct metal laser sintering is spread technology today. The main advantage of this method is the ability to produce parts which have a very complex geometry and which can be produced only in very complicated way by classical conventional methods. Special category of such components are parts with porous structure, which can give to the product extraordinary combination of properties. The article deals with some aspects that influence the manufacturing of regular porous structures in spite of the fact that input technological parameters at various samples were the same. The main goal of presented research has been to investigate the influence of the volume ratio of solid phase on carrying capacity of regular porous structure. Realized tests have indicated that the unit of regular porous structure with lower volume ratio is able to carry a greater load to failure than the unit with higher volume ratio.

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Section: Resultsmentioning

confidence: 99%

Influence of the volume ratio of solid phase on carrying capacity of regular porous structure

2017

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“…The application scope of modal analysis is expected to undergo significant expansion in the coming years. [11] In the article two approaches to the modal analysis were presented focused on the numerical and experimental methods. The natural frequencies and the natural shapes of the flange were specified due to the both methods verification.…”

Section: Discussionmentioning

confidence: 99%

Two Approaches to Modal Analysis of the Flange Produced by DMLS Technology

Monková¹,

Monka²,

Hricová³

2017

dtetr

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Abstract. In the past two decades, modal analysis has become a major technology in the quest for determining, improving and optimizing dynamic characteristics of engineering structures. The essential idea of modal analysis is to describe complex phenomena in structural dynamics with simple constituents, i.e. natural vibration modes. The article deals with numerical and experimental modal analysis of a flange. Within the research, the experimental and computational models were created due to the verification of obtained modal parameters-natural frequencies and natural shapes. Numerical analysis was carried out by means of FEM method using PTC Creo software. The results obtained by experimental modal analysis were evaluated by measuring system PULSE. Experimental measurements have shown that the values of natural frequencies along with the natural shapes are adequate and that no natural frequency is not the same or close to the excitation frequency, so the component can be used in the real practice.

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“…It is ideal for many tooling applications such as tools for injection molding, die casting of light metal alloys, punching, extrusion, it is also good for high performance industrial and engineering parts, for example aerospace and motor racing applications. [8] Known mechanical properties of the steel are listed in Table 2. [9] Table 2. Mechanical properties of steel 1.2709 [9].…”

Section: Tested Partmentioning

confidence: 99%

Hardness and Surface Roughness Study of Steel Part Produced by Additive Technology

Monková¹,

Monka²,

Mandulak³

2017

dtetr

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Abstract. 3D printing is currently growing very rapidly and it allows to produce structurally complex elements consisting of one or more parts. 3D printing technique delivers some problems which are necessary to solve. The article deals with the hardness and surface roughness investigation of a component produced by direct metal laser sintering technology. The goal of the research was to study the influence of a surface orientation on observed parameters mentioned above. The tested sample was designed as a complex part that includes many geometrical features, which can also influence properties of a product. The part was produced from maraging steel 1.2709. Executed preliminary tests have shown that the obtained values differ, what indicates that there are effects of manufacturing conditions on the product quality. Next experiments will be performed to specify the impact degree of individual factors.

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Innovation and Technology Transfer for Business Development

Cited by 42 publications

References 1 publication

Influence of the volume ratio of solid phase on carrying capacity of regular porous structure

Influence of the volume ratio of solid phase on carrying capacity of regular porous structure

Two Approaches to Modal Analysis of the Flange Produced by DMLS Technology

Hardness and Surface Roughness Study of Steel Part Produced by Additive Technology

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