Laser treatment systems and methods for in-situ laser shock peening (lsp) treatment of parts during production thereof by a selective laser sintering or melting (sls/slm) process, and additive manufacturing systems and methods implementing the same
There is described, in accordance with a first aspect of the invention, a laser treatment system and method for, in particular, imparting beneficial residual stresses into a desired part (P) during production thereof by a Selective Laser Sintering or Melting (SLS/SLM) process, the method including the step of repeatedly subjecting the desired part (P) to an in-situ Laser Shock Peening (LSP) treatment as the desired part (P) is gradually being produced during the SLS/SLM process. The in-situ LSP treatment includes selectively bringing an LSP module (20) in contact with a surface (S) of the desired part (P) being produced during the SLS/SLM process and subjecting the LSP module (20) to the action of a first laser beam (LLSP) to impart beneficial residual stresses into the desired part (P). According to this first aspect of the invention, the LSP module (20) is movable between a building chamber (30) where the desired part (P) is being produced, for the purpose of carrying out the in-situ LSP treatment, and a separate storage chamber (35) located adjacent to the building chamber (30), when the LSP module (20) is not used for the purpose of carrying out the in-situ LSP treatment. This first aspect of the invention is implementable in a corresponding additive manufacturing system and method. Further aspects of the invention are described.
68542679
Alternative title(s) : (fr) Systèmes et procédés de traitement au laser pour le traitement par martelage par chocs laser (lsp) in situ de pièces lors de leur production par un procédé de frittage ou fusion laser sélectifs (sls/slm), systèmes de fabrication additive et procédés les mettant en œuvre
TTO:6.1541.2
Patent number | Country code | Kind code | Date issued |
EP4054779 | EP | B1 | 2024-05-01 |
US2022395906 | US | A1 | 2022-12-15 |
EP4054779 | EP | A1 | 2022-09-14 |
WO2021090043 | WO | A1 | 2021-05-14 |