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LARGE-SCALE EFFICIENT SELECTIVE LASER MELTING FORMING DEVICE

A large-scale efficient selective laser melting forming device, comprising: a rack (1); a forming workbench (2) provided on the rack; a forming bin (3) sleeved on the forming workbench; a galvanometer scanning device (7) provided outside the forming bin and reciprocating in the powder laying direction to form a multi-station working state; and a smoke blowing and sucking mechanism (8) provided in the forming bin in a mode of synchronously moving to the same station with the galvanometer scanning device. The galvanometer scanning device can reciprocate in the powder laying direction to achieve the multi-station working state, thus large-size part forming can be achieved; the galvanometer scanning device is overall provided outside the forming bin, thus the inert gas protection space can be reduced, the inert gas is saved, and the forming bin is compact in structure; moreover, the smoke blowing and sucking mechanism provided in the forming bin can synchronously move with the galvanometer scanning device to the same station, and when laser sintering is conducted at different stations, smoke discharging can be achieved smoothly; and a smoke blowing and sucking rack of the smoke blowing and sucking mechanism can move up and down relative to a support plate, when a scraper works, the scraper can be avoided, and the overall structure compactness of the forming bin is improved.


» Number: WO2019029021A1 (A1)

» Publication Date: 14/02/2019

» Applicant: UNIV CHONGQING?[CN]

» Inventor: ZHANG ZHENGWEN?[CN]; ZHANG PENG?[CN] (7)

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