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    • 8. 发明公开
    • METHODS OF FORMING HOLES IN A WORKPIECE AND ASSOCIATED SYSTEMS
    • 在工件和相关系统中形成孔的方法
    • EP3208017A1
    • 2017-08-23
    • EP16195079.5
    • 2016-10-21
    • The Boeing Company
    • HENRY, Donald E.HESS, Frank P.THOMPSON, Brian A.
    • B23B35/00B23B39/16B23B39/22B23B39/24B23C1/08
    • B23B41/00B23B35/00B23B2220/04B23B2220/24B23B2220/52B23B2226/27B23B2228/36B23C1/08B23C5/10B23C2220/16B23D77/00B23D2277/68
    • Described herein is a first method of forming a hole (60) in a workpiece (100), having a first surface (110) and a second surface (112) opposite the first surface (110). The method includes forming a first hole (120), having a first diameter (D 1 ), in the workpiece (100) by passing a first cutter (116) through the workpiece (100) from the first surface (110) to the second surface (112). Additionally, the method includes forming a chamfer (142) in the second surface (112) of the workpiece (100) concentric with the first hole (120) using a second cutter (130). The chamfer (132) has a second diameter (D 2 ) larger than the first diameter (D 1 ). The method further includes forming a second hole (160), having a fourth diameter (D 4 ) larger than the first diameter (D 1 ), in the workpiece (100) concentric with the first hole (120) by passing a third cutter (150) through the workpiece (120) from the first surface (110) to the second surface (112).
    • 这里描述的是在工件(100)中形成孔(60)的第一种方法,其具有第一表面(110)和与第一表面(110)相对的第二表面(112)。 该方法包括通过使第一切割器(116)从第一表面(110)穿过工件(100)到第二表面(110)而在工件(100)中形成具有第一直径(D1)的第一孔(120) (112)。 另外,该方法包括使用第二切割器(130)在与第一孔(120)同心的工件(100)的第二表面(112)中形成倒角(142)。 倒角(132)具有比第一直径(D1)大的第二直径(D2)。 该方法进一步包括通过经过第三切割器(150)在与第一孔(120)同心的工件(100)中形成具有大于第一直径(D1)的第四直径(D4)的第二孔(160) 通过工件(120)从第一表面(110)到第二表面(112)。