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    DMZ fracture boundary limit
    2.
    发明授权
    DMZ fracture boundary limit 有权

    公开(公告)号：US09416663B2

    公开(公告)日：2016-08-16

    申请号：US13738444

    申请日：2013-01-10

    Applicant: UNITED TECHNOLOGIES CORPORATION

    Inventor： Paul D. Duesler ,  Paul Filewich

    IPC: F01D5/12 ,  F01D5/14 ,  F01D5/00 ,  C21D10/00 ,  C21D11/00

    Abstract: A method of establishing a boundary for a material improvement process on a workpiece is disclosed. The method may include identifying a maximum allowable damage depth on the workpiece; identifying a maximum constant thickness line on the workpiece at an extent of the maximum allowable damage depth; identifying a peak vibratory stress gradient on the workpiece; identifying a peak combined engine stress on the workpiece; and specifying the boundary for the material improvement process on the workpiece relative to the maximum constant thickness line, peak vibratory stress gradient, and peak combined engine stress.

    Methods for Testing Laser Shock Peening
    3.
    发明申请
    Methods for Testing Laser Shock Peening 有权
    激光冲击强度试验方法

    公开(公告)号：US20150185109A1

    公开(公告)日：2015-07-02

    申请号：US14423671

    申请日：2013-10-01

    Applicant: United Technologies Corporation

    Inventor： Paul W. Duesler ,  Paul Filewich

    IPC: G01M7/08

    CPC classification number: G01M7/08 ,  B23K26/356 ,  B23K2101/001 ,  C21D10/005 ,  C22F1/18

    Abstract: A method for testing an edge of a rotor blade that has been hardened is disclosed. A shallow notch is created in the edge of the blade using a laser and the blade is then tested using an HCF process. If the blade passes the test, a deeper notch is imparted into the edge of the blade and the blade is retested. If the blade passes the second test, a third notch may be imparted into the edge of the blade and the blade is tested again. Any test failure may provide assistance in modifying the parameters used to harden the blade. The blade may be initially hardened using an LSP process.

    Abstract translation: 公开了一种用于测试已经硬化的转子叶片的边缘的方法。 使用激光在叶片的边缘产生浅切口，然后使用HCF工艺测试刀片。 如果刀片通过测试，则将更深的切口赋予刀片的边缘并重新测试刀片。 如果刀片通过第二次测试，则可以将第三个切口赋予刀片的边缘，并再次测试刀片。 任何测试失败可能会帮助修改用于硬化刀片的参数。 可以使用LSP工艺来最初硬化刀片。

    DMZ Fracture Boundary Limit
    6.
    发明申请
    DMZ Fracture Boundary Limit 有权
    DMZ断裂边界极限

    公开(公告)号：US20140193267A1

    公开(公告)日：2014-07-10

    申请号：US13738444

    申请日：2013-01-10

    Applicant: UNITED TECHNOLOGIES CORPORATION

    Inventor： Paul D. Duesler ,  Paul Filewich

    IPC: F01D5/12 ,  F01D25/00 ,  C21D10/00

    CPC classification number: F01D5/12 ,  C21D10/005 ,  C21D11/00 ,  F01D5/005 ,  F01D5/141 ,  F05D2260/80 ,  F05D2260/81 ,  F05D2260/94 ,  Y10T29/49231

    Abstract: A method of establishing a boundary for a material improvement process on a workpiece is disclosed. The method may include identifying a maximum allowable damage depth on the workpiece; identifying a maximum constant thickness line on the workpiece at an extent of the maximum allowable damage depth; identifying a peak vibratory stress gradient on the workpiece; identifying a peak combined engine stress on the workpiece; and specifying the boundary for the material improvement process on the workpiece relative to the maximum constant thickness line, peak vibratory stress gradient, and peak combined engine stress.

    Abstract translation: 公开了一种在工件上建立材料改良工艺边界的方法。 该方法可以包括识别工件上的最大允许损伤深度; 在最大允许损伤深度的范围内识别工件上的最大恒定厚度线; 识别工件上的峰值振动应力梯度; 识别工件上的发动机应力峰值; 并指定相对于最大恒定厚度线，峰值振动应力梯度和峰值组合发动机应力在工件上的材料改进过程的边界。

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