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.)
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AGfiledCriticalSiemens AG
Priority to DE19893923790priorityCriticalpatent/DE3923790A1/de
Publication of DE3923790A1publicationCriticalpatent/DE3923790A1/de
Application grantedgrantedCritical
Publication of DE3923790C2publicationCriticalpatent/DE3923790C2/de
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
B23K15/00—Electron-beam welding or cutting
B23K15/02—Control circuits therefor
Landscapes
Engineering & Computer Science
(AREA)
Mechanical Engineering
(AREA)
Welding Or Cutting Using Electron Beams
(AREA)
Electron Sources, Ion Sources
(AREA)
DE198939237901989-07-181989-07-18Verfahren und vorrichtung zur vermeidung von schweissfehlern beim elektronenstrahlschweissen
GrantedDE3923790A1
(de)
Plasma lens e.g. for focussing charged particle beam - has insulating wall enclosing cylindrical discharge plasma between two opposing electrodes with aligned apertures for passage of particle beam