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    • 2. 发明授权
    • Bend bar quality control method for laser shock peening
    • 激光冲击硬化弯曲棒质量控制方法
    • US07906745B2
    • 2011-03-15
    • US11009123
    • 2004-12-10
    • Richard D. TenagliaAllan H. ClauerJeff L. DulaneyDavid F. LahrmanSteve Toller
    • Richard D. TenagliaAllan H. ClauerJeff L. DulaneyDavid F. LahrmanSteve Toller
    • B23K26/00
    • C21D10/005G01N3/20G01N3/62G01N2203/0248G01N2203/0664
    • A bend bar is available for use in a quality control test for testing for a consistency of residual stress effects in a particular material using a given a laser peening process. The bar is composed of the particular material to be tested and has a bar length and a bar thickness. The particular material has a characteristic maximum stress penetration depth for compressive residual stresses that can be formed in using the given laser peening process. The bar thickness is chosen so as to be at least twice the characteristic maximum stress penetration depth. The bar has a test surface that extends parallel to the bar length and perpendicular to the bar thickness. After forming a spot pattern on the test surface using the given laser peening process, the deflection generated in the bar due to the compressive residual stresses induced by laser peening can then be measured and used as a quality control measurement.
    • 弯曲杆可用于质量控制测试,用于使用给定的激光喷丸处理来测试特定材料中的残余应力效应的一致性。 该棒由待测试的特定材料组成,具有棒长度和棒厚度。 特定材料具有特定的最大应力穿透深度,用于在使用给定的激光喷丸处理过程中形成的压缩残余应力。 选择棒厚度至少是特征最大应力穿透深度的两倍。 棒具有平行于棒长度并垂直于棒厚度的测试表面。 在使用给定的激光喷丸处理方法在测试表面上形成斑点图案之后,可以测量由于激光喷丸处理引起的压缩残余应力而在棒中产生的偏转并用作质量控制测量。