JPS57142781A - Electron beam welding method - Google Patents

Electron beam welding method

Info

Publication number
JPS57142781A
JPS57142781A JP2924381A JP2924381A JPS57142781A JP S57142781 A JPS57142781 A JP S57142781A JP 2924381 A JP2924381 A JP 2924381A JP 2924381 A JP2924381 A JP 2924381A JP S57142781 A JPS57142781 A JP S57142781A
Authority
JP
Japan
Prior art keywords
electron beam
beam
cross sectional
sectional shape
shape
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
Application number
JP2924381A
Inventor
Muneharu Kutsuna
Shozo Matsuda
Kozo Yasuda
Original Assignee
Kawasaki Heavy Ind Ltd
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 Kawasaki Heavy Ind Ltd filed Critical Kawasaki Heavy Ind Ltd
Priority to JP2924381A priority Critical patent/JPS57142781A/en
Publication of JPS57142781A publication Critical patent/JPS57142781A/en
Application status is Pending legal-status Critical

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K15/00Electron-beam welding or cutting
    • B23K15/0046Welding

Abstract

PURPOSE:To prevent the generation of porosities and wormhole like beads in performing electron beam welding by changing the cross sectional shape of an electron beam from a circular shape to an elliptical shape at prescribed periods. CONSTITUTION:In electron beam welding, a deflection coil 2 for an electron beam 3 is provided in the lower part of a focusing coil 1 for the beam 3, and a transmitter 4 and an amplifier 5 are installed to the connection thereof so as to form Kapp's magnetic field when electricity is conducted to this coil 2. When the electrical circuit for forming the Kapp's magnetic field is held open, the cross sectional shape of the beam 3 is circular, and if the circuit s closed, the beam deforms to an elliptical shape. In this way, the cross sectional shape of the electron beam is changed periodically, by which the disturbance and pores in the flow of the molten metal in the molten pool in welding base metals are agitated and reheated, whereby the generation of porosites and wormhole beads is prevented.
JP2924381A 1981-02-27 1981-02-27 Electron beam welding method Pending JPS57142781A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2924381A JPS57142781A (en) 1981-02-27 1981-02-27 Electron beam welding method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2924381A JPS57142781A (en) 1981-02-27 1981-02-27 Electron beam welding method

Publications (1)

Publication Number Publication Date
JPS57142781A true JPS57142781A (en) 1982-09-03

Family

ID=12270799

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2924381A Pending JPS57142781A (en) 1981-02-27 1981-02-27 Electron beam welding method

Country Status (1)

Country Link
JP (1) JPS57142781A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61255773A (en) * 1985-05-10 1986-11-13 Natl Res Inst For Metals Electron beam welding method by electron beam shape control
JPS61255774A (en) * 1985-05-10 1986-11-13 Natl Res Inst For Metals Electron beam welding method
US7693696B2 (en) 2005-06-10 2010-04-06 Chrysler Group Llc System and methodology for zero-gap welding
US8198565B2 (en) 2007-04-11 2012-06-12 Chrysler Group Llc Laser-welding apparatus and method
US8803029B2 (en) 2006-08-03 2014-08-12 Chrysler Group Llc Dual beam laser welding head

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61255773A (en) * 1985-05-10 1986-11-13 Natl Res Inst For Metals Electron beam welding method by electron beam shape control
JPS61255774A (en) * 1985-05-10 1986-11-13 Natl Res Inst For Metals Electron beam welding method
JPH027755B2 (en) * 1985-05-10 1990-02-20 Kagaku Gijutsucho Kinzoku Zairyo Gijutsu Kenkyu Shocho
US7693696B2 (en) 2005-06-10 2010-04-06 Chrysler Group Llc System and methodology for zero-gap welding
US8253062B2 (en) 2005-06-10 2012-08-28 Chrysler Group Llc System and methodology for zero-gap welding
US8803029B2 (en) 2006-08-03 2014-08-12 Chrysler Group Llc Dual beam laser welding head
US8198565B2 (en) 2007-04-11 2012-06-12 Chrysler Group Llc Laser-welding apparatus and method

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