Magnesium-based materials find their use mainly in manufacturing light-weight constructions in motor-car, airspace industries, and biomedicine due to the low density. This paper provides an overview of introducing magnesium into SLM technology and describes searching experiments to prepare samples of magnesium powder МPF-4 (Russian State Standard 6001-79) conducted in the Laboratory of Yurga Institute of Technology. The study has determined appropriate parameters to synthesize a compact structure: laser output power 100 W, laser beam movement velocity 200 mm/s, scanning pitch 0.1 mm, modulation frequency of laser irradiation m = 2500 Hz, linear energy density Е=5 J/mm2, the process is to be carried out in argon shielding medium.

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Abstract.Article is devoted to an actual problem in architecture and construction-identify features of modeling and building Smart city concept based on the future-designing technology (project forecasting) as a method of designing. The purpose of the article is to present the main blocks and progressive stages of the implementation of this method, as well as its techniques and principles: from sketch to construction management. A leading approach to the study of this problem is based on future by designing modeling and predicting the evolution of the social and cultural changes in society, as well as the development of technology and focuses on design innovation, adequate future. Materials, articles and examples in designing parametric modeling may be useful for the theory and practice of forming the space Environment as opens completely new possibilities in architecture und construction.Keywords: project forecasting, modeling of spatial habitat Environment, new approaches and methods of design, information technology and formation of virtual reality in architecture. IntroductionIn architectural activity any project formation Environment of vital activity is a kind of projection. The result of prediction is a complex object, including in accordance with customer requirements: functional structure, specifically shaped the content and consumer properties of the architectural object. Unlike the established methods of modeling urban space for the formation of the concept of Smart city are encouraged to use technology future-design (project forecasting), which is used for the advanced development of new objects and substantive future Environment. This design approach is reflected, on the one hand, in the form of concrete results of designer activity (predictive models and projects-concepts of substantive Environment) and, on the other hand, as a result of projected project activities (process developing new ideas and creative designs).In this regard, the purpose of this article is to present the main blocks and step-by-step stages of implementation of the method future-design, as well as its techniques and principles: from sketch to construction management Smart city.Future-design technology (project forecasting) are used in many theoretical and practical developments in various areas of research, such as: project forecasting in the context of the development of the structural outline and contour predictive model [1], theoretical and methodological bases of social forecasting [2], [3], as well as the use of script techniques in architecture, where the architect is a producer-programmer [5]. Project forecasting method is also used when generating a virtual Habitat Environment [6] and in the formation of conceptual architecture objects in a mass media culture, where the elements Environment transformed into a new reality [8].The relevance of this problem is due to the fact that in this case the connection project and forecast in a single unit. Forecast methodology used the scientific validity of the expected result, b...

quality improvement problem has been considered for a laser sintered surface layer. Purposely built experimental setup was decribed together with a four-factor experiment design on laser sintering PMS-1 copper powder. A mathematical model describing the effect of laser sintering process parameters on the surface roughness has been proposed. Practical recommendation for improving the quality of the surface layer is given.

Selective laser melting (SLM) is thought to be a prospective manufacturing technology of complex metal components. Formation of coagulated particles when melting is reported to be an important factor for target mechanical properties of the end product. This paper discusses the effect of SLM parameters, including laser output power, laser movement velocity, preheating temperature of the powder, laser beam diameter on the mechanism of forming coagulated particles in melting cobalt-chromium-molybdenum powdered material. The study shows that a rise of power to 60 W at a scanning velocity 6 mm/s causes coagulated particles to expand to 350 μm; that is far bigger than a size of powder in as delivered state (90 μm). The work investigates the effect of mechanical activation of cobalt-chromium-molybdenum powder on dimensions of coagulated particles. The research data can be applied to the improvement of up-to-date optimization approaches to manufacturing process parameters in SLM technology.