ENHANCED WELDABILITY FOR HIGH STRENGTH CAST AND WROUGHT NICKEL SUPERALLOYS

    公开(公告)号:SG137813A1

    公开(公告)日:2007-12-28

    申请号:SG2007037526

    申请日:2007-05-24

    Inventor: MALLEY DAVID R

    Abstract: A method for repairing a turbine engine component comprises the steps of providing a turbine engine component formed from a nickel-based superalloy, removing any defects from the turbine engine component, the removing step comprising subjecting the turbine engine component to a solutioning heat treatment using a heating rate in the range of from 29 degrees Fahrenheit/minute to approximately 40 degrees Fahrenheit/minute as the component passes through a temperature in the range of from 1100 degrees Fahrenheit to 1600 degrees Fahrenheit, and welding the turbine engine component to effect the repair. A deliberately slow post solution treatment cooling rate is used to substantially prevent weld cracks.

    Repair of braze joint and article repaired

    公开(公告)号:SG122036A1

    公开(公告)日:2006-05-26

    申请号:SG200508431

    申请日:2005-10-26

    Abstract: A method of repairing a braze joint (16) and the resulting joint includes removing an unsuitable portion (20) of a first joining material (18) in a joint (16) between a first member (12) and a second member (14) of an aerospace assembly (10) and cleaning the joint (16). A stripping solution is used to remove the unsuitable portion (20) of the first joining material (18). A first cleaning solution is used to clean the joint (16), and the joint (16) is further cleaned using a second cleaning solution. During a rebrazing step, a second joining material (60) moves into a void left by the removed unsuitable portion (20) from the removal step to form a new joint between the first member (12) and the second member (14) that includes the remaining first joining material (18) and the second joining material (60).

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