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Information × Registration Number 0213U003475, 0111U008318 , R & D reports Title The establishment of technological features of laser welding of butt joints of dissimilar stainless steels with carbon and low. popup.stage_title Head Bernatckij Artemij Vladimirovich, Registration Date 05-02-2013 Organization E.O.Paton Electric Welding Institute of the National of Sciences of Ukraine popup.description2 Research object - process of laser welding of butt joints of dissimilar materials, such as: stainless steel with carbon and low. Purpose - to develop basic technological methods of laser welding of butt joints of dissimilar stainless steel to carbon and low. Research methods - development tooling, experimental studies of laser butt welding of dissimilar joints of stainless steel to carbon and low alloy, metallographic examination, mechanical testing. The analysis of modern scientific research devoted to the preparation of butt joints of dissimilar materials, such as: stainless steel to carbon and low alloy with different welding methods. Completed development of conceptual documentation and manufactured tooling for research. Completed development of basic technological methods of laser welding of butt joints of dissimilar stainless steel to carbon and low. Proposed for this type of compounds conduct welding operation ostrosfokusirovannym ray beam with an offset to the side of high-chromium steels. On the developed laboratory bench experiments were performed in which the optimal, in terms of the geometry of the joint, the welding process conditions to be varied within the following limits: the radiation power 2.5 ... 4.4 kW, welding speed 120 ... 360 m / h, the value of defocus 0 ... 15 mm, shielding gas flow 5.0 ... 10.0 l / min. Out comprehensive metallographic examination, during which identified and studied the characteristics of the microstructure obtained in the process of welding samples. During mechanical testing, the experimental values ??of the ultimate tensile strength of the order of 426 ... 446 MPa. All welds were destroyed by the base metal less durable material, at a distance of 15 ... 25 mm from the weld. Projected assumptions about the development of the object of research - the use of the results in various industries for the development of fundamentally new technologies connected by a thin stainless steel parts with parts made of carbon and low alloy steels. Product Description popup.authors Сіора Олександр Васильович popup.nrat_date 2020-04-02 Close