Preparation of an article surface having a surface compressive texture
    1.
    发明公开
    Preparation of an article surface having a surface compressive texture 有权
    制备具有表面压缩的结构强调的对象的具有表面

    公开(公告)号:EP1813686A1

    公开(公告)日:2007-08-01

    申请号:EP07101135.7

    申请日:2007-01-25

    摘要: A method for preparing a surface (32) includes providing an article (30) having an article surface (32), thereafter first processing the article surface (32) to establish a first residual compressive stress state and a first surface roughness in the article surface (32), and thereafter second processing the article surface (32) by surface compressive texturing to establish a second residual compressive stress state and a second surface roughness in the article surface (32). The second surface roughness is quantitatively less than the first surface roughness, and substantially no material is removed from the article surface (32) in the step of second processing.

    摘要翻译: 一种用于制备表面(32)的方法包括:提供在具有在物品表面(32)条(30),之后首先处理物品表面(32),以建立在所述制品表面上的第一残余压缩应力状态和第一表面粗糙度 (32),并且此后第二处理用物品表面(32)由表面压缩纹理化,以建立第二残余压缩应力状态,并在物品表面(32)的第二表面粗糙度。 第二表面粗糙度是定量比所述第一表面粗糙度更小,并且基本上没有材料从在第二处理步骤中的物品表面(32)除去。

    Method for evaluating burnishing element condition
    3.
    发明公开
    Method for evaluating burnishing element condition 有权
    维尔法罕zur Zustandsbewertung eines Festwalzelements

    公开(公告)号:EP1938925A1

    公开(公告)日:2008-07-02

    申请号:EP07123702.8

    申请日:2007-12-19

    IPC分类号: B24B39/00 C21D7/08 C22F1/00

    CPC分类号: B24B39/00 B24B39/003

    摘要: A method of evaluating the condition of a rolling burnishing element (14) includes moving a burnishing element (14) having an unknown condition against a surface in a preselected test pattern (T1); while moving the burnishing element (14), recording at least one test force profile (30) representative of a force acting on the burnishing element (14) in at least one dimension; and comparing the at least one test force profile (30) to at least one baseline force profile (28) to determine a deviation of the condition of the second burnishing element (14) from a baseline condition.

    摘要翻译: 评估轧制抛光元件(14)的状态的方法包括以预选的测试图案(T1)将具有未知状态的抛光元件(14)移动到表面上; 在移动抛光元件(14)的同时,在至少一个维度上记录表示作用在抛光元件(14)上的力的至少一个测试力分布(30); 以及将所述至少一个测试力分布(30)与至少一个基准力分布(28)进行比较,以确定所述第二抛光元件(14)的条件与基线条件的偏差。

    Method and apparatus for increasing fatigue notch capability of airfoils
    5.
    发明公开
    Method and apparatus for increasing fatigue notch capability of airfoils 审中-公开
    的方法和装置的电阻增加至叶片的疲劳开裂

    公开(公告)号:EP1941968A2

    公开(公告)日:2008-07-09

    申请号:EP07123678.0

    申请日:2007-12-19

    IPC分类号: B23P9/02 B24B39/06 C21D7/08

    摘要: A method of reducing crack propagation in an airfoil (22) includes: providing an airfoil (22) having a root (36) spaced apart from a tip (34), spaced-apart leading and trailing edges (30, 32), a suction side (40) extending from the leading edge (30) to the trailing edge (32), and an opposed pressure side (38) extending from the leading edge (30) and the trailing edge (32), supporting the airfoil (22) against bending loads. The airfoil (22) is burnished using a burnishing element (42), so as to create at least one burnished section (68) of residual compressive stress. The at least one burnished section (68) is located adjacent the leading edge (30) and spaced from the leading edge (30) by an offset distance selected so as to avoid deformation of the leading edge (30).

    摘要翻译: 减少在一个翼型(22)裂纹扩展的方法,包括:在翼片(22)提供具有根(36)从前端(34)间隔开的,间隔开的前缘和后缘(30,32),抽吸 侧(40),从所述前缘(30)与后缘(32)延伸,并在与压力侧(38)从所述前缘(30)和后缘(32)延伸,支承所述翼型件(22) 对弯曲载荷。 该翼型件(22)是使用抛光元件(42),以便产生残余压缩应力中的至少一个抛光部分(68)抛光。 所述至少一个抛光部分(68)位于邻近前缘(30),并通过在偏移距离选择成避免所述前缘(30)的变形从所述前缘(30)隔开。

    Method for determining initial burnishing parameters
    6.
    发明公开
    Method for determining initial burnishing parameters 有权
    Verfahren zur Bestimmung vonanfänglichenFestwalzparametern

    公开(公告)号:EP1938926A1

    公开(公告)日:2008-07-02

    申请号:EP07123705.1

    申请日:2007-12-19

    IPC分类号: B24B39/00 C21D7/08 C22F1/00

    摘要: A method of determining parameters for a burnishing operation includes: using a rolling burnishing element (11) to burnish at least two segments (14) on a selected surface (12) of a material sample (13), the segments (14) having a common width (W) and overlapping each other by a preselected overlap value (OV); measuring the resulting hardness of the surface (12); and selecting a working overlap value (OV) for a subsequent burnishing operation on a workpiece (WP), based on the measured hardness.

    摘要翻译: 确定抛光操作参数的方法包括:使用滚动抛光元件(11)在材料样品(13)的选定表面(12)上抛光至少两个段(14),所述段(14)具有 公共宽度(W)并且通过预选重叠值(OV)彼此重叠; 测量所得表面(12)的硬度; 以及基于所测量的硬度,选择工件(WP)的后续抛光操作的工作重叠值(OV)。