公开(公告)号：US20180009082A1

公开(公告)日：2018-01-11

申请号：US15204226

申请日：2016-07-07

Applicant: The Boeing Company

Inventor： Nicholas R. Farrell ,  James D. Gamboa ,  Wesley E. Holleman ,  Gary Lipczynski

IPC: B24B39/00 ,  B24B39/02 ,  B23C5/10 ,  B23B51/08

CPC classification number: B24B39/006 ,  B23B51/00 ,  B23B51/08 ,  B23C5/10 ,  B23C2220/52 ,  B23C2220/605 ,  B23C2226/27 ,  B23C2270/04 ,  B23P9/00 ,  B24B39/02

Abstract: A machining tool incorporates a shaft having a first end configured to fit into a machining collet. A cutting portion extends from a second end of the shaft. A residual stress inducer is located between the first and second ends and includes a torsion element joined to the shaft at a connection end. A carbide tip is present on a free end opposite the connection end and the torsion element is configured such that a selected rotational speed, altered from a normal cutting speed, causes the carbide tip of the torsion element to contact a workpiece surface.

公开(公告)号：US10434624B2

公开(公告)日：2019-10-08

申请号：US15204226

申请日：2016-07-07

Applicant: The Boeing Company

Inventor： Nicholas R. Farrell ,  James D. Gamboa ,  Wesley E. Holleman ,  Gary Lipczynski

IPC: B23B51/00 ,  B24B39/00 ,  B23B51/08 ,  B23C5/10 ,  B24B39/02 ,  B23P9/00

Abstract: A machining tool incorporates a shaft having a first end configured to fit into a machining collet. A cutting portion extends from a second end of the shaft. A residual stress inducer is located between the first and second ends and includes a torsion element joined to the shaft at a connection end. A carbide tip is present on a free end opposite the connection end and the torsion element is configured such that a selected rotational speed, altered from a normal cutting speed, causes the carbide tip of the torsion element to contact a workpiece surface.