REPAIR OF COMPONENTS USING ADDITIVE MANUFACTURING WITH IN-SITU COLD WORKING

    公开(公告)号:US20190128144A1

    公开(公告)日:2019-05-02

    申请号:US15801943

    申请日:2017-11-02

    摘要: Aspects are directed to removing a portion of a component that includes wear to generate a void in the component, where a material of the component has a first microstructure, depositing a filler material in the void, subjecting the filler material to a cold working technique to compress the filler material, and applying a heat treatment to cause the filler material to have a second microstructure that is matched to the first microstructure. Aspects are directed to a case of an engine, including: a first portion with a first material that has a first microstructure, and a second portion with a second material that has a second microstructure, where the second microstructure is matched to the first microstructure, where the second material includes a plurality of layers, and where at least one layer of the plurality of layers includes a compressive residual stress.

    DEEP ROLLING TOOL AND METHOD
    17.
    发明申请

    公开(公告)号:US20180169828A1

    公开(公告)日:2018-06-21

    申请号:US15385648

    申请日:2016-12-20

    IPC分类号: B24B39/04 B25J15/00

    摘要: An embodiment of a tool assembly includes a spring-loaded shaft assembly disposed along a first axis, a hub, and a roller disk. The hub is connected to a distal end of the spring-loaded shaft assembly. The hub has an upper hub portion adjacent to the distal end of the spring-loaded shaft assembly aligned with the first axis, and a lower hub portion extending along a second axis. The second axis forms an angle relative to the first axis. The roller disk is joined to the lower portion of the hub, and has a working surface about its perimeter. The roller disk is rotatable about the second axis parallel to the second portion of the hub. The working surface includes a profile along its width such that an effective radius of the roller disk varies along a width thereof.

    DEEP ROLL PEENING SYSTEM AND METHOD
    18.
    发明申请

    公开(公告)号:US20170348821A1

    公开(公告)日:2017-12-07

    申请号:US15174136

    申请日:2016-06-06

    IPC分类号: B24B39/00 B23P9/02

    CPC分类号: B24B39/003 B23P9/02 C21D7/08

    摘要: A method for deep roll peening a workpiece includes deep roll peening a workpiece by moving the workpiece along a feed path through multiple groups of opposed rollers that are arranged in series. Each group of opposed rollers includes a rim that defines a workpiece engagement surface that exerts a deep roll peening force on the workpiece. A deep roll peening system includes multiple groups of opposed rollers. Each of the opposed rollers is rotatably mounted and has a rim that defines a workpiece engagement surface. The workpiece engagement surfaces are spaced apart from each other by a gap. The groups are arranged in series such that the gaps define a feed path for receiving a workpiece into serial contact with the workpiece engagement surfaces.