PARTS MANUFACTURING METHOD BY LAYER LASER ALLOYING OF HEAT-RESISTANT ALLOYS BASED ON NICKEL METALLIC POWDERS

FIELD: metallurgy.SUBSTANCE: powder layer applying on the substrate, forming the first layer of the part by selectively alloying the powder with the laser beam, reexecution of the above mentioned operations to form the subsequent part layers. It is carried out the hot isostatic pressing in the argon...

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Hauptverfasser:	Nerush Svyatoslav Vasilevich, Khodyrev Nikita Alekseevich, Rogalev Aleksej Mikhajlovich, Evgenov Aleksandr Gennadevich, Kablov Evgenij Nikolaevich, Vasilenko Svetlana Aleksandrovna, Sukhov Dmitrij Igorevich
Format:	Patent
Sprache:	eng ; rus
Schlagworte:	ADDITIVE MANUFACTURING TECHNOLOGY ADDITIVE MANUFACTURING, i.e. MANUFACTURING OFTHREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVEAGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING,STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING CASTING CHEMICAL SURFACE TREATMENT CHEMISTRY CLADDING OR PLATING BY SOLDERING OR WELDING CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING MATERIAL WITH METALLIC MATERIAL COATING METALLIC MATERIAL CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING DIFFUSION TREATMENT OF METALLIC MATERIAL GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL MACHINE TOOLS MAKING METALLIC POWDER MANUFACTURE OF ARTICLES FROM METALLIC POWDER METAL-WORKING NOT OTHERWISE PROVIDED FOR METALLURGY PERFORMING OPERATIONS POWDER METALLURGY SOLDERING OR UNSOLDERING SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE TRANSPORTING WELDING WORKING BY LASER BEAM WORKING METALLIC POWDER
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Beschreibung
Zusammenfassung:	FIELD: metallurgy.SUBSTANCE: powder layer applying on the substrate, forming the first layer of the part by selectively alloying the powder with the laser beam, reexecution of the above mentioned operations to form the subsequent part layers. It is carried out the hot isostatic pressing in the argon medium and the heat treatment of the obtained part. The metal powder of the chromium heat resistant nickel based alloy is preliminarily subjected to gasdynamic separation with further degassing. The process of the powder alloying with the laser beam is carried out in the protective nitrogen atmosphere. Before hot isostatic pressing, the part and titanium or titanium alloy chips are placed in the electrocorundum medium, in such a way that the part and the mentioned chips are not contacted.EFFECT: manufacturing of parts with low porosity, roughness and content of harmful oxygen impurity, as well as with high mechanical properties.5 cl, 3 tbl, 2 ex Изобретение относится к способу изготовлению детали из хромосодержащего жаропрочного сплава на основе никеля и может найти применение при изготовлении деталей газотурбинных двигателей. Осуществляют нанесение слоя порошка на подложку, формирование первого слоя детали посредством селективного сплавления порошка лазерным лучом, повторное выполнение вышеуказанных операций для формирования последующих слоев детали. Проводят горячее изостатическое прессование в среде аргона и термическую обработку полученной детали. Металлический порошок хромсодержащего жаропрочного сплава на основе никеля предварительно подвергают газодинамической сепарации с последующей дегазацией. Процесс сплавления порошка лазерным лучом проводят в защитной атмосфере азота. Перед горячим изостатическим прессованием деталь помещают в среду электрокорунда и стружки титана или титанового сплава таким образом, чтобы деталь и указанная стружка не соприкасались. Технический результат - получение деталей с низкой пористостью, шероховатостью и содержанием вредной примеси кислорода, а также высокими механическими свойствами. 4 з.п. ф-лы, 3 табл., 2 пр.