FR2244987A1 - Continuous weld quality control monitor - by infra-red radiation detector output signal compared with desired reference signal - Google Patents

Continuous weld quality control monitor - by infra-red radiation detector output signal compared with desired reference signal

Info

Publication number
FR2244987A1
FR2244987A1 FR7333705A FR7333705A FR2244987A1 FR 2244987 A1 FR2244987 A1 FR 2244987A1 FR 7333705 A FR7333705 A FR 7333705A FR 7333705 A FR7333705 A FR 7333705A FR 2244987 A1 FR2244987 A1 FR 2244987A1
Authority
FR
France
Prior art keywords
reference signal
infra
quality control
radiation detector
detector output
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.)
Granted
Application number
FR7333705A
Other languages
French (fr)
Other versions
FR2244987B1 (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TASCHLER BERNARD
Original Assignee
TASCHLER BERNARD
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by TASCHLER BERNARD filed Critical TASCHLER BERNARD
Priority to FR7333705A priority Critical patent/FR2244987A1/en
Priority to ES430181A priority patent/ES430181A1/en
Priority to DE19742445132 priority patent/DE2445132A1/en
Priority to JP10790674A priority patent/JPS5078380A/ja
Publication of FR2244987A1 publication Critical patent/FR2244987A1/en
Application granted granted Critical
Publication of FR2244987B1 publication Critical patent/FR2244987B1/fr
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N25/00—Investigating or analyzing materials by the use of thermal means
    • G01N25/72—Investigating presence of flaws
    • 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
    • B23K11/00—Resistance welding; Severing by resistance heating
    • B23K11/24—Electric supply or control circuits therefor
    • B23K11/25—Monitoring devices
    • B23K11/252—Monitoring devices using digital means

Landscapes

  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Investigating Or Analyzing Materials Using Thermal Means (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Abstract

The quality of a weld (spot weld) is controlled by directing on it a detector of the infrared radiation. An electronic circuit produces a signal proportion to the heating intensity which is compared with a reference signal representing the desired heat input in the weld. A control signal is produced as soon as the measured signal exceeds the reference signal. This system is less complicated than ultrasonic testing; it requires no coupling fluid and can be used for thinner workpieces. It requires no probe which may be damaged by surface roughness and is less complicated than dilatation tests.
FR7333705A 1973-09-20 1973-09-20 Continuous weld quality control monitor - by infra-red radiation detector output signal compared with desired reference signal Granted FR2244987A1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
FR7333705A FR2244987A1 (en) 1973-09-20 1973-09-20 Continuous weld quality control monitor - by infra-red radiation detector output signal compared with desired reference signal
ES430181A ES430181A1 (en) 1973-09-20 1974-09-18 Procedure for control of contribution of energy calorify. (Machine-translation by Google Translate, not legally binding)
DE19742445132 DE2445132A1 (en) 1973-09-20 1974-09-20 PROCEDURE AND ARRANGEMENT FOR WELDING QUALITY TESTING
JP10790674A JPS5078380A (en) 1973-09-20 1974-09-20

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7333705A FR2244987A1 (en) 1973-09-20 1973-09-20 Continuous weld quality control monitor - by infra-red radiation detector output signal compared with desired reference signal

Publications (2)

Publication Number Publication Date
FR2244987A1 true FR2244987A1 (en) 1975-04-18
FR2244987B1 FR2244987B1 (en) 1977-03-11

Family

ID=9125300

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7333705A Granted FR2244987A1 (en) 1973-09-20 1973-09-20 Continuous weld quality control monitor - by infra-red radiation detector output signal compared with desired reference signal

Country Status (4)

Country Link
JP (1) JPS5078380A (en)
DE (1) DE2445132A1 (en)
ES (1) ES430181A1 (en)
FR (1) FR2244987A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2394358A1 (en) * 1977-06-16 1979-01-12 Centre Rech Metallurgique Resistance welding steel bars to mfr. grids - using sensors to measure electrode pressure and displacement and the welding current
FR2395805A1 (en) * 1977-06-27 1979-01-26 Square D Co DIGITAL WELD CONTROL SYSTEM
EP0252624A1 (en) * 1986-06-18 1988-01-13 Land Infrared Limited Weld monitoring

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4079225A (en) * 1976-08-04 1978-03-14 Warner Allan S Fiber optic/photon detector for brazing machine
US4224496A (en) * 1978-10-12 1980-09-23 Joyal Products, Inc. Method and apparatus for controlling a brazing machine
JPS5997457U (en) * 1982-12-20 1984-07-02 三洋電機株式会社 Battery current collector welding inspection equipment
JPS60145698A (en) * 1984-01-10 1985-08-01 日本電気株式会社 Laser soldering inspecting device
JPH01216246A (en) * 1988-02-24 1989-08-30 Tanaka Kikinzoku Kogyo Kk Quality deciding method for resistance welded article
DE4311320A1 (en) * 1993-04-06 1994-10-13 Branson Ultraschall Method and device for checking the weld seam quality in the joining of plastics parts
CN102175717A (en) * 2011-02-17 2011-09-07 浙江超威新能源技术研究院 Device and method for detecting welding quality of storage battery busbar

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2394358A1 (en) * 1977-06-16 1979-01-12 Centre Rech Metallurgique Resistance welding steel bars to mfr. grids - using sensors to measure electrode pressure and displacement and the welding current
FR2395805A1 (en) * 1977-06-27 1979-01-26 Square D Co DIGITAL WELD CONTROL SYSTEM
EP0252624A1 (en) * 1986-06-18 1988-01-13 Land Infrared Limited Weld monitoring

Also Published As

Publication number Publication date
ES430181A1 (en) 1976-10-16
DE2445132A1 (en) 1975-03-27
FR2244987B1 (en) 1977-03-11
JPS5078380A (en) 1975-06-26

Similar Documents

Publication Publication Date Title
FR2244987A1 (en) Continuous weld quality control monitor - by infra-red radiation detector output signal compared with desired reference signal
ATE28935T1 (en) THERMOGRAPHY OF BALANCING PROCEDURES.
JPS5757246A (en) Detecting and measuring apparatus for flaw
ES444236A1 (en) Vessel nozzle inspection apparatus
SE7605462L (en) MICROWAVE OVEN
EP0075190A3 (en) Apparatus and method for measuring thickness
GB1454348A (en) Pyrometric method for the non-contact measurement of temperature
JPS5730916A (en) Device for measuring surface temperature and emissivity
GB1177444A (en) Infra Red Detecting Device
JPS57180120A (en) Monitoring device for beam annealing
JPS57131028A (en) Infrared temperature measuring apparatus
JPS5711785A (en) Method and apparatus for inspection of parallel gap welding
JPS57159285A (en) Laser working device
JPS5588988A (en) Ultrasonic detecting device for resistance welding
JPS57163831A (en) Radiation thermometer
JPS57159286A (en) Laser working device
JPS55131753A (en) Temperature controller for use in element analysis
JPS57153209A (en) Minute dimension measuring device
JPS5658659A (en) Measuring method of grain size of steel material using pulse laser light
JPS57187676A (en) Measuring device for distance
FR2331789A1 (en) Recording of weld seam faults along metal article - by detecting intensity of reflected infrared radiation
GB1405887A (en) Automatic control of hot-machining operations
AT285209B (en) Device for non-destructive testing of hot workpieces with ultrasound
SU1320037A1 (en) Apparatus for laser machining of metals
JPS5497474A (en) Infrared image pickup device

Legal Events

Date Code Title Description
ST Notification of lapse