Repairing method for eliminating clutters generated during ultrasonic flaw detection of high-temperature alloy

The invention discloses a repair method for eliminating clutters generated during the ultrasonic flaw detection of a high-temperature alloy, and belongs to the field of alloy repair methods. The method is characterized by comprising the following steps: S1, heating: heating a coarse-grain forging to a solid solution temperature, and preserving the heat of the forging; S2, preparing a die: specifically, preheating the die, then performing heat preservation on the die for a period of time to prevent forge piece cracking caused by quenching when the die makes contact with a forge piece; S3, bulging: specifically, transferring the forge piece into a bulging machine, then sleeving the forge piece into the die, laying the die flat, starting the bulging machine, making pressing die to move downwards to drive the die to move in the radial direction, allowing the outer diameter of the forge piece to extend outwards to reduce the wall thickness of a ring piece; S4, maintaining pressure: specifically, when the die moves in place, stopping, and maintaining the pressure for a period of time; and S5, cooling: specifically, covering the forge piece with a heat preservation material during pressure maintaining to prevent the generation of stress due to too fast cooling. The method has the advantages the forge piece does not need to be repaired through multiple times of solid solution, and thequality and stability of a repaired product are improved.