JPWO2020074462A5 - - Google Patents
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- JPWO2020074462A5 JPWO2020074462A5 JP2021518114A JP2021518114A JPWO2020074462A5 JP WO2020074462 A5 JPWO2020074462 A5 JP WO2020074462A5 JP 2021518114 A JP2021518114 A JP 2021518114A JP 2021518114 A JP2021518114 A JP 2021518114A JP WO2020074462 A5 JPWO2020074462 A5 JP WO2020074462A5
- Authority
- JP
- Japan
- Prior art keywords
- weld
- temperature
- infrared sensor
- measured
- weld pool
- 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.)
- Pending
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- 238000003466 welding Methods 0.000 claims 12
- 238000004140 cleaning Methods 0.000 claims 4
- 235000010599 Verbascum thapsus Nutrition 0.000 claims 3
- 239000000203 mixture Substances 0.000 claims 2
- 210000001503 Joints Anatomy 0.000 claims 1
- 229910000831 Steel Inorganic materials 0.000 claims 1
- 239000000956 alloy Substances 0.000 claims 1
- 229910045601 alloy Inorganic materials 0.000 claims 1
- 229910052782 aluminium Inorganic materials 0.000 claims 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminum Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims 1
- 230000002950 deficient Effects 0.000 claims 1
- 239000012530 fluid Substances 0.000 claims 1
- 239000010959 steel Substances 0.000 claims 1
Claims (15)
溶接中に、赤外線センサー(2)を使用して単一の測定スポットにおいて測定することによって溶接部(W)の平均溶融池温度(WP)を測定すること(101)であって、前記測定スポットが溶融池(WP)を実質的に囲み、前記赤外線センサー(2)が溶接トーチ(3)とともに配置された、溶接部の平均溶融池温度を測定すること(101)と、
少なくとも前記測定された溶融池温度に基づいて、測定された溶融池温度が予想される温度プロファイルから逸脱しているかどうかを検証することによって、前記溶接部の欠陥状態を決定することと
を含む、方法(100)。 A method (100) for detecting defects in arc welding, comprising:
During welding, measuring (101) the average weld pool temperature (WP) of the weld (W) by measuring at a single measuring spot using an infrared sensor (2) , said measuring spot substantially surrounds the weld pool (WP) and said infrared sensor (2) is arranged with the welding torch (3) , measuring (101) the average weld pool temperature of the weld;
determining a defect status of the weld by verifying whether the measured weld pool temperature deviates from an expected temperature profile based at least on the measured weld pool temperature; Method (100) .
前記温度勾配が所定の温度勾配しきい値を上回る場合、欠陥状態を決定することと
をさらに含む、請求項1から3のいずれか一項に記載の方法(100)。 calculating the temperature gradient between two different points in time;
The method (100) of any one of claims 1 to 3, further comprising determining a defect status if the temperature gradient exceeds a predetermined temperature gradient threshold.
赤外線センサー(2)であって、前記赤外線センサー(2)が溶融池(WP)に焦点を当てるように、前記トーチ(3)とともに配置される、赤外線センサー(2)と、
前記赤外線センサー(2)とデータ通信しているコントローラ(8)と
を備える溶接システム(1)であって、
前記赤外線センサー(2)の測定スポットが前記溶融池(WP)を実質的に包囲し、前記溶接システム(1)が、請求項1から11のいずれか一項に記載の溶接における欠陥を検出するための方法(100)を実行するように構成された、溶接システム(1)。 an arc welding torch (3) ;
an infrared sensor (2) arranged with the torch (3) such that the infrared sensor ( 2) is focused on the weld pool (WP) ;
A welding system (1) comprising a controller (8) in data communication with the infrared sensor (2) , comprising:
The measuring spot of the infrared sensor (2) substantially surrounds the weld pool (WP), and the welding system (1) detects defects in the weld according to any one of claims 1-11 . A welding system (1) configured to perform a method (100) for.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP18382709 | 2018-10-08 | ||
EP18382709.6 | 2018-10-08 | ||
PCT/EP2019/077120 WO2020074462A1 (en) | 2018-10-08 | 2019-10-07 | Method for detecting welding defects in arc welding and arc welding system |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2022504089A JP2022504089A (en) | 2022-01-13 |
JPWO2020074462A5 true JPWO2020074462A5 (en) | 2022-10-18 |
Family
ID=64049023
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2021518114A Pending JP2022504089A (en) | 2018-10-08 | 2019-10-07 | Methods and arc welding systems for detecting welding defects in arc welding |
Country Status (5)
Country | Link |
---|---|
US (1) | US20210339343A1 (en) |
EP (1) | EP3863795A1 (en) |
JP (1) | JP2022504089A (en) |
CN (1) | CN113302017A (en) |
WO (1) | WO2020074462A1 (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11301980B2 (en) * | 2020-04-21 | 2022-04-12 | GM Global Technology Operations LLC | System and method to evaluate the integrity of spot welds |
JP7364529B2 (en) | 2020-05-11 | 2023-10-18 | 株式会社日立製作所 | Welding control device, welding robot system, and welding control method |
JP7038876B1 (en) | 2021-05-18 | 2022-03-18 | 日鉄エンジニアリング株式会社 | Welding system, welding method and program |
DE102022208184A1 (en) * | 2022-08-05 | 2024-02-08 | Kjellberg Stiftung, rechtsfähige Stiftung des bürgerlichen Rechts | Method and device for detecting a process state of a plasma arc process |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5728679A (en) * | 1980-07-25 | 1982-02-16 | Hitachi Ltd | Method and apparatus for controlling arc welding |
US4484059A (en) | 1982-04-26 | 1984-11-20 | General Electric Company | Infrared sensor for arc welding |
JPS60247475A (en) * | 1984-05-23 | 1985-12-07 | Hitachi Ltd | Method for controlling welding by image processing |
US5475198A (en) * | 1985-11-15 | 1995-12-12 | Westinghouse Electric Corporation | Weld pool viewing system |
JP2861649B2 (en) * | 1992-07-14 | 1999-02-24 | 日本鋼管株式会社 | Steel plate weld inspection method |
FR2910621B1 (en) * | 2006-12-21 | 2009-02-06 | Renault Sas | METHOD AND DEVICE FOR CONTROLLING THE QUALITY OF A WELD CORD |
DE102008038332A1 (en) * | 2008-08-19 | 2009-01-22 | Daimler Ag | Robotic welding process and assembly for e.g. automobile assembly uses module-logged electrical and optical welding parameters |
CN102128684B (en) * | 2010-12-31 | 2012-05-23 | 上海协同物理研究所 | Optical probe with blower for infrared thermodetector |
CN103862136B (en) * | 2014-03-14 | 2015-08-12 | 吉林大学 | The monitoring device of fusion process and monitoring method |
CN104741802B (en) * | 2015-03-30 | 2017-08-04 | 中国石油天然气集团公司 | A kind of welding quality monitoring system and method |
CN106216814B (en) | 2016-09-08 | 2019-03-08 | 肇庆市小凡人科技有限公司 | A kind of arc welding robot |
CN107081503A (en) * | 2017-05-31 | 2017-08-22 | 温州大学 | The infrared nondestructive detection device and its Infrared Non-destructive Testing method of a kind of arc-welding quality |
CN107931802B (en) * | 2017-11-27 | 2020-01-03 | 中北大学 | Arc welding seam quality online detection method based on mid-infrared temperature sensing |
-
2019
- 2019-10-07 US US17/283,244 patent/US20210339343A1/en active Pending
- 2019-10-07 CN CN201980066157.5A patent/CN113302017A/en active Pending
- 2019-10-07 EP EP19783313.0A patent/EP3863795A1/en active Pending
- 2019-10-07 WO PCT/EP2019/077120 patent/WO2020074462A1/en unknown
- 2019-10-07 JP JP2021518114A patent/JP2022504089A/en active Pending
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