FIELD: process engineering.
SUBSTANCE: invention relates to powder metallurgy, particularly, to production of nano-structured materials. It can be used for production of complex shape parts from fine powders in various machine building branches. Powder composition components are laid layer-by-layer in reaction chamber to required topology. Preheating is made to prophase temperatures of composition or less refractory component of said composition by source that ensures heating of the entire volume of said powder composition. Thereafter, laser processing is performed for 3D sandwiched article under conditions that allow phase conversions. Now, produced model is withdrawn from the chamber with removal of powder composition not involved in forming of said 3D articles.
EFFECT: lower temperature gradient in processing area.
6 cl
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD FOR PRODUCING AN NON-EVAPORABLE GETTER AND A COMPOSITE GETTER FOR AN X-RAY TUBE | 2020 |
|
RU2754864C1 |
| METHOD OF PRODUCTION OF ARTICLES WITH COMPLEX SHAPE OUT OF POWDER SYSTEMS | 2014 |
|
RU2562722C1 |
| METHOD OF COATING ARTICLE BY LASER LAYER-BY-LAYER SYNTHESIS | 2010 |
|
RU2443506C2 |
| METHOD FOR ADDITIVE MANUFACTURING OF METAL, CERAMIC OR COMPOSITE PRODUCTS | 2022 |
|
RU2802607C1 |
| METHOD FOR MANUFACTURING MATERIAL WITH HIGH-TEMPERATURE SHAPE MEMORY EFFECT BASED ON NITINOL | 2022 |
|
RU2794908C1 |
| METHOD OF PRODUCING VOLUMETRIC ARTICLES FROM HIGH-ENTROPY ALLOY ALLOYED WITH NITROGEN BY SELECTIVE LASER MELTING | 2023 |
|
RU2821178C1 |
| METHOD FOR ADDITIVE FORMATION OF AN ARTICLE WITH A COMBINED STRUCTURE FROM A HEAT-RESISTANT NICKEL ALLOY WITH HIGH-TEMPERATURE HEATING | 2023 |
|
RU2821638C1 |
| METHOD FOR MAKING THREE-DIMENSIONAL PRODUCTS OF POWDER COMPOSITION | 1995 |
|
RU2145269C1 |
| METHOD OF PRODUCING BIMETALLIC OSTEOINTEGRATED IMPLANTS | 2023 |
|
RU2836712C1 |
| METHOD FOR MAKING PIEZOCERAMIC THREE-DIMENSIONAL ARTICLES FROM POWDER COMPOSITIONS | 1999 |
|
RU2214316C2 |
