公开(公告)号：US20240060165A1

公开(公告)日：2024-02-22

申请号：US17892541

申请日：2022-08-22

Applicant: Raytheon Technologies Corporation

Inventor： Andrzej E. Kuczek ,  Tahany El-Wardany ,  Benjamin Bedard ,  Michael A. Klecka ,  Randy P. Salva ,  Krzysztof Barnat

IPC: C22F1/04 ,  F01D5/14

CPC classification number: C22F1/04 ,  F01D5/147 ,  F05D2220/32 ,  F05D2240/30 ,  F05D2230/26

Abstract: A system for deep rolling a fan blade including a shaft assembly disposed along a first axis; a hub connected to a distal end of the shaft assembly, the hub having an upper hub portion and a lower hub portion extending along a second axis, the second axis forming an angle relative to a first axis; a roller disk joined to the lower portion of the hub, the roller disk configured to contact a fan blade; a fixture supporting the fan blade; the fixture comprising a body supporting a pivot clamp attached to the body with a pivot; a support attached to the body, the support is configured to engage an airfoil portion of the fan blade; a receiver formed in the body for supporting a root of the fan blade; and a shoulder attached to the body configured to support a platform portion of the fan blade.

公开(公告)号：US12123085B2

公开(公告)日：2024-10-22

申请号：US17892541

申请日：2022-08-22

Applicant: Raytheon Technologies Corporation

Inventor： Andrzej E. Kuczek ,  Tahany El-Wardany ,  Benjamin Bedard ,  Michael A Klecka ,  Randy P. Salva ,  Krzysztof Barnat

IPC: C22F1/04 ,  B23Q1/40 ,  F01D5/14 ,  F01D25/28

CPC classification number: C22F1/04 ,  B23Q1/40 ,  F01D5/147 ,  F01D25/285 ,  B23B2270/26 ,  F05D2220/32 ,  F05D2230/26 ,  Y10T29/49998

Abstract: A system for deep rolling a fan blade including a shaft assembly disposed along a first axis; a hub connected to a distal end of the shaft assembly, the hub having an upper hub portion and a lower hub portion extending along a second axis, the second axis forming an angle relative to a first axis; a roller disk joined to the lower portion of the hub, the roller disk configured to contact a fan blade; a fixture supporting the fan blade; the fixture comprising a body supporting a pivot clamp attached to the body with a pivot; a support attached to the body, the support is configured to engage an airfoil portion of the fan blade; a receiver formed in the body for supporting a root of the fan blade; and a shoulder attached to the body configured to support a platform portion of the fan blade.

公开(公告)号：US12084733B1

公开(公告)日：2024-09-10

申请号：US18132687

申请日：2023-04-10

Applicant: Raytheon Technologies Corporation

Inventor： Tahany El-Wardany ,  Krzysztof Barnat ,  Randy P. Salva ,  Benjamin Bedard

IPC: B23P15/02 ,  B23P9/02 ,  C21D7/08

CPC classification number: C21D7/08 ,  B23P15/02 ,  B23P9/02

Abstract: A mechanical surface treatment method for a workpiece includes using a multi-axis powered machine to actuate a deep rolling tool having a roller relative to the workpiece. The actuating includes applying the roller against a workpiece surface with a normal force sufficient to plastically deform the workpiece and translating the roller relative to the workpiece surface. The method includes concurrently applying an electrical current to the workpiece surface in a manner that produces an electroplastic effect at the workpiece surface and a near surface region. The electroplastic effect and the plastic deformation produce a refinement in a grain structure at the workpiece surface and near surface region and an increase in dislocation sources and tangles within the grain structure.