Global Patent Index - EP 1044351 A1

EP 1044351 A1 2000-10-18 - TOOL CONDITION MONITORING

Title (en)

TOOL CONDITION MONITORING

Title (de)

WERKZEUGZUSTANDSÜBERWACHUNG

Title (fr)

SURVEILLANCE DE L'ETAT D'UN OUTIL

Publication

EP 1044351 A1 (EN)

Application

EP 99946305 A

Priority

  • GB 9903009 W
  • GB 9819732 A

Abstract (en)

[origin: WO0016036A1] A cutting tool (10) for a machine tool has a substrate (20) and one or more coating layers (12-18) of materials with different Raman spectra, e.g. Tin, TiA1N, TiA1XN (where X = Y, Cr, Nb, W, Mo or the like), AlN, TiC, ZrN, TiZrN, CrN or VN. A Raman spectroscopic probe (22) detects and distinguishes the Raman spectra. As the tool wears, different layers with different Raman spectra are detected, and a warning can be given when the tool needs replacing or recoating.

IPC 1-7 (main, further and additional classification)

G01B 11/06; G01N 21/84

IPC 8 full level (invention and additional information)

G01B 11/00 (2006.01); B23Q 1/00 (2006.01); B23Q 17/09 (2006.01); B23Q 17/24 (2006.01); G01B 11/06 (2006.01); G01B 11/24 (2006.01); G01B 11/245 (2006.01); G01N 21/65 (2006.01)

CPC (invention and additional information)

G01B 11/0658 (2013.01); B23Q 1/0009 (2013.01); B23Q 17/0909 (2013.01); B23Q 17/248 (2013.01); G01N 21/65 (2013.01); G01N 2021/656 (2013.01)

Citation (search report)

See references of WO 0016036A1

Designated contracting state (EPC)

DE GB IT SE

EPO simple patent family

WO 0016036 A1 20000323; EP 1044351 A1 20001018; GB 9819732 D0 19981104; JP 2002525211 A 20020813

INPADOC legal status


2004-05-26 [RBV] DESIGNATED CONTRACTING STATES (CORRECTION):

- Designated State(s): DE GB IT SE

2002-07-03 [18W] WITHDRAWN

- Date of withdrawal: 20020510

2000-12-06 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20000919

2000-10-18 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE