Eventos Anais de eventos
COBEF 2017
Congresso Brasileiro de Engenharia de Fabricação
Laser Remelting as Mean to Reduce Clad Misorietated Volume Deposited throught Laser Cladding when Applied to Single Cristaline Turbine Blades
Submission Author:
Adriano de Souza Pinto Pereira , SC
Co-Authors:
Walter Lindolfo Weingaertner, Milton Pereira
Presenter: Adriano de Souza Pinto Pereira
doi://10.26678/ABCM.COBEF2017.COF2017-0673
Abstract
The work presented had as objective the simplification of the already hard-to-achieve repair of single crystalline (SX) turbine blades, a process that could significantly reduce the costs of modern aviation. The deposition of SX clads by the laser cladding process has shown promising results on this ambit and here is seen as a tool to be improved. It was assumed, that remelting could be used to extend SX-height during re-solidification of each cladded track’s misoriented volume, and thus laser remelting of such clad tracks is this work’s focus. All tests were performed with CMSX-4, a SX Ni-based superalloy. After remelting tests a chosen re-molten clad track was used to form higher single crystalline depositions, reaching considerable SX volumes. Tests were executed in the crystalline orientations (010)/[100] or (010)/[001]; which are equivalent to orientation commonly found during a turbine repair process. Laser remelting was proven an efficient option when aiming SX increase of repair clads.
Keywords
LASER Cladding, REfusão, Reparo monocristalino, Superligas de Níquel, Lâminas de Turbina, Remelting, Single Crystalline Repair, CMSX-4, Turbine Blades
