(19)
(11) EP 3 290 156 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
18.07.2018 Bulletin 2018/29

(43) Date of publication A2:
07.03.2018 Bulletin 2018/10

(21) Application number: 17184674.4

(22) Date of filing: 03.08.2017
(51) International Patent Classification (IPC): 
B24B 49/00(2012.01)
B24B 37/005(2012.01)
 B24B 49/16(2006.01)
(84) Designated Contracting States:
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated Extension States:
BA ME
Designated Validation States:
MA MD

(30) Priority: 31.08.2016 GB 201614685

(71) Applicant: Rolls-Royce plc
London SW1E 6AT (GB)

(72) Inventors:
  • Tegoeh, Tjahjowidodo
    Derby, Derbyshire DE24 8BJ (GB)
  • Barai, Ranjit
    Derby, Derbyshire DE24 8BJ (GB)
  • Kaniyamkudy Pappachan, Bobby
    Derby, Derbyshire DE24 8BJ (GB)
  • Wijaya, Tomi
    Derby, Derbyshire DE24 8BJ (GB)

(74) Representative: Rolls-Royce plc 
Intellectual Property Dept SinA-48 PO Box 31
Derby DE24 8BJ
Derby DE24 8BJ (GB)

   


(54) METHOD AND APPARATUS FOR MONITORING ABRASIVE MACHINING


(57) There is disclosed a method of monitoring abrasion of a component during abrasive machining. The method comprises generating an acceleration signal corresponding to movement of the component or of an abrasive tool in response to abrasive machining of the component by the tool; generating an acoustic emission signal corresponding to acoustic waves emitted from within the component; and determining an abrasion parameter relating to the removal of material from the component based on a set of input variables including the acceleration signal and the acoustic emission signal. There is also disclosed an apparatus for abrasion monitoring and optionally abrasive machining, and a non-transitory machine readable storage medium comprising instructions for abrasion monitoring.







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