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FR2429071A1 - Control system for electrical resistance welding machine - executes digital measurement of welding characteristics for stability of required process - Google Patents

Control system for electrical resistance welding machine - executes digital measurement of welding characteristics for stability of required process

Info

Publication number
FR2429071A1
FR2429071A1 FR7818903A FR7818903A FR2429071A1 FR 2429071 A1 FR2429071 A1 FR 2429071A1 FR 7818903 A FR7818903 A FR 7818903A FR 7818903 A FR7818903 A FR 7818903A FR 2429071 A1 FR2429071 A1 FR 2429071A1
Authority
FR
France
Prior art keywords
high frequency
welding
electrical resistance
stability
control system
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
FR7818903A
Other languages
French (fr)
Other versions
FR2429071B1 (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.)
Nippon Steel Corp
Original Assignee
Nippon Steel Corp
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 Nippon Steel Corp filed Critical Nippon Steel Corp
Priority to FR7818903A priority Critical patent/FR2429071A1/en
Publication of FR2429071A1 publication Critical patent/FR2429071A1/en
Application granted granted Critical
Publication of FR2429071B1 publication Critical patent/FR2429071B1/fr
Granted legal-status Critical Current

Links

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
    • 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

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Measurement Of Resistance Or Impedance (AREA)

Abstract

Appareil de surveillance et de commande d'un phénomène de soudage dans une soudure électrique par résistance. L'appareil comprend un compteur 5 de caractéristiques de soudage à haute fréquence comprenant une fréquence oscillante, une période oscillante de haute fréquence, et une différence de phase entre la tension à haute fréquence et un courant de cette haute fréquence, lesdites caractéristiques de soudage à haute fréquence changeant en correspondance avec l'apparition de fluctuations périodiques dans la forme du circuit de soudage passant dans le matériau à souder, un générateur 9 de signaux de remise à zéro étant couplé au compteur 5 pour émettre un signal de remise à zéro qui fait recommencer au compteur les mesures numériques. Application au soudage par résistance électrique.Apparatus for monitoring and controlling a welding phenomenon in electrical resistance welding. The apparatus comprises a high frequency welding characteristics counter comprising an oscillating frequency, an oscillating period of high frequency, and a phase difference between the voltage at high frequency and a current of this high frequency, said welding characteristics at high frequency. high frequency changing in correspondence with the occurrence of periodic fluctuations in the shape of the welding circuit passing through the material to be welded, a reset signal generator 9 being coupled to the counter 5 to output a reset signal which causes restart the digital measurements on the meter. Application to electrical resistance welding.

FR7818903A 1978-06-23 1978-06-23 Control system for electrical resistance welding machine - executes digital measurement of welding characteristics for stability of required process Granted FR2429071A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7818903A FR2429071A1 (en) 1978-06-23 1978-06-23 Control system for electrical resistance welding machine - executes digital measurement of welding characteristics for stability of required process

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7818903A FR2429071A1 (en) 1978-06-23 1978-06-23 Control system for electrical resistance welding machine - executes digital measurement of welding characteristics for stability of required process

Publications (2)

Publication Number Publication Date
FR2429071A1 true FR2429071A1 (en) 1980-01-18
FR2429071B1 FR2429071B1 (en) 1982-04-30

Family

ID=9209935

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7818903A Granted FR2429071A1 (en) 1978-06-23 1978-06-23 Control system for electrical resistance welding machine - executes digital measurement of welding characteristics for stability of required process

Country Status (1)

Country Link
FR (1) FR2429071A1 (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2179230A1 (en) * 1972-04-06 1973-11-16 Matsushita Electric Industrial Co Ltd

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2179230A1 (en) * 1972-04-06 1973-11-16 Matsushita Electric Industrial Co Ltd

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
NV900/69 *

Also Published As

Publication number Publication date
FR2429071B1 (en) 1982-04-30

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Legal Events

Date Code Title Description
ST Notification of lapse
ST Notification of lapse