CA2323802A1 - Algorithme de filtration inverse pour la detection de defauts du soudage au laser - Google Patents
Algorithme de filtration inverse pour la detection de defauts du soudage au laser Download PDFInfo
- Publication number
- CA2323802A1 CA2323802A1 CA002323802A CA2323802A CA2323802A1 CA 2323802 A1 CA2323802 A1 CA 2323802A1 CA 002323802 A CA002323802 A CA 002323802A CA 2323802 A CA2323802 A CA 2323802A CA 2323802 A1 CA2323802 A1 CA 2323802A1
- Authority
- CA
- Canada
- Prior art keywords
- emissions
- emission
- samples
- coefficient
- laser
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
- 238000001514 detection method Methods 0.000 title description 6
- 238000001914 filtration Methods 0.000 title 1
- 238000012545 processing Methods 0.000 claims abstract description 22
- 238000012544 monitoring process Methods 0.000 claims abstract description 11
- 238000000034 method Methods 0.000 claims description 34
- 230000008569 process Effects 0.000 claims description 7
- 230000008859 change Effects 0.000 claims description 5
- 239000000155 melt Substances 0.000 claims description 4
- 238000007689 inspection Methods 0.000 claims description 2
- 230000004044 response Effects 0.000 claims description 2
- 238000005259 measurement Methods 0.000 claims 4
- 238000012935 Averaging Methods 0.000 claims 1
- 230000011664 signaling Effects 0.000 claims 1
- 238000013519 translation Methods 0.000 claims 1
- 238000003466 welding Methods 0.000 abstract description 14
- 239000000835 fiber Substances 0.000 description 9
- 230000003287 optical effect Effects 0.000 description 9
- 238000012360 testing method Methods 0.000 description 5
- 230000005855 radiation Effects 0.000 description 4
- 239000011324 bead Substances 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000003746 surface roughness Effects 0.000 description 2
- 230000001052 transient effect Effects 0.000 description 2
- 229910001335 Galvanized steel Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 230000000875 corresponding effect Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000008397 galvanized steel Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000011179 visual inspection Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/02—Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
- B23K26/03—Observing, e.g. monitoring, the workpiece
- B23K26/032—Observing, e.g. monitoring, the workpiece using optical means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/18—Sheet panels
- B23K2101/185—Tailored blanks
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Laser Beam Processing (AREA)
Abstract
Selon cette invention, les erreurs susceptibles d'être commises lors de traitements au laser, tels que la soudure, de composants, peuvent être identifiées par détermination d'une moyenne à partir d'un ensemble d'échantillons et par suivi de l'écart à la moyenne à l'intérieur de cet ensemble. Un coefficient représentatif des écarts d'un ensemble moyen de conditions est élaboré. Ce coefficient permet de contrôler plus d'un paramètre, en général les émissions IR et UV provenant du traitement au laser.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US11590299P | 1999-01-14 | 1999-01-14 | |
| US60/115,902 | 1999-01-14 | ||
| PCT/CA2000/000026 WO2000041837A1 (fr) | 1999-01-14 | 2000-01-14 | Procede de detection d'erreurs dans les traitements au laser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2323802A1 true CA2323802A1 (fr) | 2000-07-20 |
Family
ID=22364044
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002323802A Abandoned CA2323802A1 (fr) | 1999-01-14 | 2000-01-14 | Algorithme de filtration inverse pour la detection de defauts du soudage au laser |
Country Status (3)
| Country | Link |
|---|---|
| AU (1) | AU2087400A (fr) |
| CA (1) | CA2323802A1 (fr) |
| WO (1) | WO2000041837A1 (fr) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6947802B2 (en) * | 2000-04-10 | 2005-09-20 | Hypertherm, Inc. | Centralized control architecture for a laser materials processing system |
| FR2811427B1 (fr) * | 2000-07-06 | 2002-10-25 | Aerospatiale Matra Ccr | Procede de detection et d'identification de defauts dans un cordon de soudure realise par faisceau laser |
| JP3603843B2 (ja) | 2001-02-23 | 2004-12-22 | 日産自動車株式会社 | レーザー溶接部の品質モニタリング方法およびその装置 |
| ITTO20020376A1 (it) * | 2002-05-07 | 2003-11-07 | Fiat Ricerche | Sistema e procedimento per il monitoraggio di saldature laser,ad esempio saldature di semilavorati costituiti da elementi in lamiera metalli |
| ITTO20020508A1 (it) * | 2002-06-14 | 2003-12-15 | Fiat Ricerche | Sistema e procedimento per il monitoraggio di saldature laser |
| US7186947B2 (en) | 2003-03-31 | 2007-03-06 | Hypertherm, Inc. | Process monitor for laser and plasma materials processing of materials |
| ITTO20040013A1 (it) * | 2004-01-13 | 2004-04-13 | Fiat Ricerche | Procedimento per il controllo della qualita' di processi industriali in particolare processi di saldatura laser |
| EP1677170A1 (fr) * | 2004-12-30 | 2006-07-05 | C.R.F. Società Consortile per Azioni | Module avec capteur pour la surveillance de procédés industriels |
| US7595894B2 (en) | 2006-06-02 | 2009-09-29 | General Electric Company | Profilometry apparatus and method of operation |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4106007A1 (de) * | 1991-02-26 | 1992-09-03 | Fraunhofer Ges Forschung | Verfahren und vorrichtung zum bearbeiten von werkstuecken mit laserstrahlung |
| GB9321866D0 (en) * | 1993-10-22 | 1993-12-15 | Kinsman Grant | Fuzzy logic control of laser welding |
| US5651903A (en) * | 1995-10-12 | 1997-07-29 | Trw Inc. | Method and apparatus for evaluating laser welding |
-
2000
- 2000-01-14 CA CA002323802A patent/CA2323802A1/fr not_active Abandoned
- 2000-01-14 AU AU20874/00A patent/AU2087400A/en not_active Abandoned
- 2000-01-14 WO PCT/CA2000/000026 patent/WO2000041837A1/fr not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| AU2087400A (en) | 2000-08-01 |
| WO2000041837A1 (fr) | 2000-07-20 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Discontinued | ||
| FZDE | Discontinued |
Effective date: 20040114 |