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Information × Registration Number 0217U004257, 0112U000616 , R & D reports Title Optimize the welding technology, methods of diagnosis and determining the stress - strain states of modern transport structures popup.stage_title Head Lobanov Leonid Mykhailovych, Доктор технічних наук Registration Date 27-01-2017 Organization E.O. Paton Electric Welding Institute of the National Academy of Sciences of Ukraine popup.description2 A new technological approach and created a corresponding experimental equipment for the implementation of arc pointwise connections structures with thick facial elements 1.5 ... 5.0 mm steel 09G2S Article 3 and in an upright position without pre-punching, which can significantly simplify and reduce production cycles of execution of planar elements of carriages and shipbuilding with the guaranteed support of the requirements to the geometry of surfaces at the level of the quality of raw materials. We studied the fundamental conditions for the stability of formation of sheet surfaces, close to the foil, steel on the border of the elastic-plastic state in relation to the tasks of building structures with the volume change (KPO) space technology and general technical, in particular, the transport destination (bellows). The assumption about the benefits of a comprehensive implementation of technological manufacturing cycle tonkoobolochechnyh welded membrane bellows. Designed suitable for replication of a full set of tooling and equipment for welding membrane bellows, algorithms and parametric characteristics of their productive use. Implementation of development in the industrial sector, closed for public information, confirmed its suitability to the priority indicators of operational reliability and product quality. The technology of non-destructive testing of defects structural elements coated with a protective coating made of metal and composite materials based on the method of e-shearography combined with thermally load of the object. Efficacy of technology shown if damaged coating on the surface of different types of the objects (flat or complex shapes) as test samples, and the full-scale structural elements (elements of the panels and turbine blades). Conducted studies of the effect of electrodynamic machining (EDM) on the fatigue resistance and the evolution of aluminum alloy structure AMg6 and its welded joints. It is found that the use of EDI AMg6 alloy samples allows an order to increase their fatigue crack growth resistance under cyclic loading as compared to untreated metal. It was found that the EDC in a flat alloy sample uniaxial tension AMg6 for different load patterns occur differences in the manifestation of the effect of the port of La Chatelier, which is reflected in the deformation diagrams. Based fractographic analysis revealed that in different load conditions AMg6 alloy samples in the initial state, the metal fracture mechanism can vary from slice to separation. It is shown that the use of EDM enhances the stability of alloy structure AMg6 to delayed fracture. It was found that electromagnetic exposure was initiated in the treated metal deformation wave, amplitude values ??can achieve dynamic strength threshold. The results of evaluation of residual stress distributions resulting EDI plates and welded joints of the alloy AMg6 confirmed the concept of influence elektroplastichnogo effect on reducing stress state and improving the fatigue resistance of the alloy AMg6 and its welded joints. Reconstruction designs developed for carrier recovery ability pipelines areas having geometrical shapes and disorders wall defects. Pilot tests of technology of repair kleevarnye conducted on the existing oil pipeline "Druzhba". The research results are used to develop the equipment and installation of technology of repair amplifier designs. Product Description popup.authors Васильєв Юрій Степанович Волков Валентин Сергійович Киянець Ірина Владиславівна Кротенко Петро Дмитрович Міходуй Ольга Леонідівна ПІвторак В"ячеслав Автономович Пащин Микола Олександрович Савицький Віктор Володимирович popup.nrat_date 2020-04-02 Close