公开(公告)号：US20170232527A1

公开(公告)日：2017-08-17

申请号：US15045840

申请日：2016-02-17

申请人： The Boeing Company

发明人： Donald E. Henry ,  Frank P. Hess ,  Brian A. Thompson

IPC分类号： B23B41/00 ,  B23C5/10

CPC分类号： B23B41/00 ,  B23B35/00 ,  B23B2220/04 ,  B23B2220/24 ,  B23B2220/445 ,  B23B2220/52 ,  B23B2226/27 ,  B23B2228/36 ,  B23C1/08 ,  B23C2220/16 ,  B23C2220/52 ,  B23C2220/68 ,  B23D77/00 ,  B23D2277/68 ,  Y10T29/49996 ,  Y10T29/5107 ,  Y10T408/03 ,  Y10T409/303808 ,  Y10T409/304144 ,  Y10T409/304424 ,  Y10T409/307616

摘要： Described herein is a first method of forming a hole in a workpiece, having a first surface and a second surface opposite the first surface. The method includes forming a first hole, having a first diameter, in the workpiece by passing a first cutter through the workpiece from the first surface to the second surface. Additionally, the method includes forming a chamfer in the second surface of the workpiece concentric with the first hole using a second cutter. The chamfer has a second diameter larger than the first diameter. The method further includes forming a second hole, having a third diameter larger than the first diameter, in the workpiece concentric with the first hole by passing a third cutter through the workpiece from the first surface to the second surface.

公开(公告)号：US10399151B2

公开(公告)日：2019-09-03

申请号：US15045840

申请日：2016-02-17

申请人： The Boeing Company

发明人： Donald E. Henry ,  Frank P. Hess ,  Brian A. Thompson

IPC分类号： B23B41/00 ,  B23B35/00 ,  B23D77/00 ,  B23C3/12 ,  B23C1/08

摘要： Described herein is a first method of forming a hole in a workpiece, having a first surface and a second surface opposite the first surface. The method includes forming a first hole, having a first diameter, in the workpiece by passing a first cutter through the workpiece from the first surface to the second surface. Additionally, the method includes forming a chamfer in the second surface of the workpiece concentric with the first hole using a second cutter. The chamfer has a second diameter larger than the first diameter. The method further includes forming a second hole, having a third diameter larger than the first diameter, in the workpiece concentric with the first hole by passing a third cutter through the workpiece from the first surface to the second surface.