Fabrication of components by layered deposition

Details Fabrication of components by layered deposition Fabrication of components by layered deposition

B - Operations, Transporting

23

P

18/1103, 22/176

B23P 15/02 (2006.01) B22D 23/00 (2006.01) B22F 3/105 (2006.01) B23K 26/34 (2006.01) B23P 6/00 (2006.01) B29C 67/00 (2006.01) C23C 26/02 (2006.01) F01D 5/00 (2006.01)

Patent

CA 2005527

A component is fabricated by depositing a succession of overlying beads of a material, the pattern and position of the beads being assigned the proper characteristics of the corresponding section of the desired component. Shape definition is accomplished by characterizing the component as a series of sections or slices having the thickness of the bead, and programming a computer-controlled deposition head to deposit a succession of beads with the respective patterns and positions. Deposition is preferably by precision laser welding. Complex shapes having properties comparable to properties of forged or cast material are readily prepared. The material used in successive beads may be varied, producing a component of graded composition to achieve particular properties in various regions.

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