FR2024057A6 - Focusing an electron beam during welding - by electronic bombardment - Google Patents

Focusing an electron beam during welding - by electronic bombardment

Info

Publication number
FR2024057A6
FR2024057A6 FR6926953A FR6926953A FR2024057A6 FR 2024057 A6 FR2024057 A6 FR 2024057A6 FR 6926953 A FR6926953 A FR 6926953A FR 6926953 A FR6926953 A FR 6926953A FR 2024057 A6 FR2024057 A6 FR 2024057A6
Authority
FR
France
Prior art keywords
electron beam
focusing
during welding
beam during
high energy
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.)
Expired
Application number
FR6926953A
Other languages
French (fr)
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.)
Alcatel CIT SA
Alcatel Lucent SAS
Original Assignee
Alcatel CIT SA
Alcatel SA
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 Alcatel CIT SA, Alcatel SA filed Critical Alcatel CIT SA
Priority to FR6926953A priority Critical patent/FR2024057A6/en
Application granted granted Critical
Publication of FR2024057A6 publication Critical patent/FR2024057A6/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
    • H01J29/46—Arrangements of electrodes and associated parts for generating or controlling the ray or beam, e.g. electron-optical arrangement
    • H01J29/58—Arrangements for focusing or reflecting ray or beam
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J37/00—Discharge tubes with provision for introducing objects or material to be exposed to the discharge, e.g. for the purpose of examination or processing thereof
    • H01J37/02—Details
    • H01J37/21—Means for adjusting the focus

Landscapes

  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Welding Or Cutting Using Electron Beams (AREA)

Abstract

The process involves capturing and separating the high energy electronic flux, the low energy electronic flux and the ionic flux which are different and formed by the impact of the electron beam. The electrical currents produced by these fluxes are measured, and the high energy electronic current measurements used to focus the beam at the minimal value of the high energy electrical current. The measurements of the other currents is used for the remaining control operations.
FR6926953A 1969-08-05 1969-08-05 Focusing an electron beam during welding - by electronic bombardment Expired FR2024057A6 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR6926953A FR2024057A6 (en) 1969-08-05 1969-08-05 Focusing an electron beam during welding - by electronic bombardment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR6926953A FR2024057A6 (en) 1969-08-05 1969-08-05 Focusing an electron beam during welding - by electronic bombardment

Publications (1)

Publication Number Publication Date
FR2024057A6 true FR2024057A6 (en) 1970-08-21

Family

ID=9038680

Family Applications (1)

Application Number Title Priority Date Filing Date
FR6926953A Expired FR2024057A6 (en) 1969-08-05 1969-08-05 Focusing an electron beam during welding - by electronic bombardment

Country Status (1)

Country Link
FR (1) FR2024057A6 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1347111A (en) * 1961-11-18 1963-12-27 Zeiss Carl Method and apparatus for automatic focusing of the beam of electrified particles in instruments intended for working a material by means of a beam of electrified particles
US3158733A (en) * 1962-09-12 1964-11-24 Nat Res Corp Focus control for electron beam heating
US3426174A (en) * 1965-12-09 1969-02-04 United Aircraft Corp Electron reflection seam tracker

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1347111A (en) * 1961-11-18 1963-12-27 Zeiss Carl Method and apparatus for automatic focusing of the beam of electrified particles in instruments intended for working a material by means of a beam of electrified particles
US3158733A (en) * 1962-09-12 1964-11-24 Nat Res Corp Focus control for electron beam heating
US3426174A (en) * 1965-12-09 1969-02-04 United Aircraft Corp Electron reflection seam tracker

Similar Documents

Publication Publication Date Title
JPS5389360A (en) Electronic gun constituent
GB982669A (en) Improvements in or relating to electron beam generators
GB1138212A (en) Ion beam generator
FR2024057A6 (en) Focusing an electron beam during welding - by electronic bombardment
GB1183751A (en) Charged Particle Generator with Electromagnetic Current Control.
JPS5413249A (en) Cathode ray tube
JPS5246300A (en) Ionic source
JPS55102230A (en) Automatic focusing device
JPS545374A (en) Electronic gun
JPS5360178A (en) Target for focusing of electron beam
GB928168A (en) Improvements in or relating to mass filters including an electron impact source of ions
JPS5269092A (en) Electron beam emitter
JPS51143348A (en) Apparatus for focusing a light beam
JPS535497A (en) Electric beam current control circuit
SU140918A1 (en) Intensive ion source
JPS52123825A (en) Electron gun for pickup tube
JPS52123885A (en) X-ray tube unit
JPS51127995A (en) Control method of nuclear fusion device
ES326761A1 (en) Procedure and device of production of an electric arc. (Machine-translation by Google Translate, not legally binding)
JPS5269553A (en) Focus adjustment method for cathode-ray tube
JPS5218126A (en) Beam current control system of image pick-up tube
Inversen et al. Processes for the Automatic Welding of Aluminum
ES220401A3 (en) A procedure for mechanizing metal parts by erosion and electrical debugging (Machine-translation by Google Translate, not legally binding)
ES272725A1 (en) Improvements introduced in the control and control circuits of the cathodic rays tubes (Machine-translation by Google Translate, not legally binding)
JPS52155959A (en) Electron gun for cathode ray tube

Legal Events

Date Code Title Description
TP Transmission of property
TP Transmission of property