公开(公告)号：US20170160241A1

公开(公告)日：2017-06-08

申请号：US15346458

申请日：2016-11-08

Applicant: ROLLS-ROYCE plc

Inventor： Daniel CLARK ,  David C. WRIGHT

IPC: G01N29/32 ,  G01N29/04 ,  G01N29/07 ,  B24C1/04

CPC classification number: G01N29/326 ,  B24C1/045 ,  G01B17/02 ,  G01N29/043 ,  G01N29/07 ,  G01N29/225 ,  G01N29/226 ,  G01N29/4427 ,  G01N2291/011 ,  G01N2291/0231 ,  G01N2291/02854

Abstract: A method of machining an object, the method comprising: receiving a signal from an ultrasonic transducer; determining at least a first external surface of the object and a second internal surface of the object in the received signal; determining a thickness between the first external surface and the second internal surface of the object, the object comprising a first material between the first external surface and the second internal surface, and a second material between the second internal surface and a third surface, the determination of the thickness using a database including a plurality of materials and a plurality of associated acoustic wave velocities; and controlling machining of the first external surface using the determined thickness.

公开(公告)号：US20190321909A1

公开(公告)日：2019-10-24

申请号：US16373685

申请日：2019-04-03

Applicant: ROLLS-ROYCE plc

Inventor： Daniel CLARK ,  David C. WRIGHT ,  Steven D. TOOLEY

IPC: B23K11/25 ,  B23K11/00 ,  B23K11/06

Abstract: Welding apparatus, for example for a workpiece, comprises resistance welding electrode wheels which form a weld seam between components of the workpiece. The formed weld is monitored by an ultrasonic probe which is situated behind the rollers with reference to the weld direction. The ultrasonic probe comprises a linear phased array of piezoelectric elements. The probe enables real-time monitoring of the welding process, with the facility to adjust the process to correct deviations.