Title:
METHOD AND DEVICE FOR NON-VACUUM ELECTRON BEAM WELDING METALLIC MATERIALS
Document Type and Number:
WIPO Patent Application WO2005011907
Kind Code:
A3
Abstract:
Disclosed is a method for non-vacuum electron beam welding metallic materials by means of a vacuum electron beam gun and with the aid of process gas. According to the inventive method, at least one inert gas (11, 28) is used in addition to the process gas (33), said inert gas (11, 28) being used in different manners and compositions by means of an inert gas supply apparatus in the form of a nozzle configuration (2), which is arranged on the vacuum electron beam gun (1). According to the invention, a process gas (33) is used that contains helium and 40 to 80 percent by volume of nitrogen, with/without admixing hydrogen and/or oxygen, while the inert gas contains argon, helium, and optionally added oxygen and nitrogen. The inventive method and the inventive device allow for optimal process control and thus inexpensive and quality-responsive material processing.
Inventors:
HILDEBRANDT BERND (DE)
WANKUM ACHIM (DE)
WANKUM ACHIM (DE)
Application Number:
PCT/EP2004/051674
Publication Date:
June 09, 2005
Filing Date:
July 30, 2004
Export Citation:
Assignee:
AIR LIQUIDE DEUTSCHLAND GMBH (DE)
MESSER GROUP GMBH (DE)
HILDEBRANDT BERND (DE)
WANKUM ACHIM (DE)
MESSER GROUP GMBH (DE)
HILDEBRANDT BERND (DE)
WANKUM ACHIM (DE)
International Classes:
B23K15/10; B23K35/38; H01J37/315; (IPC1-7): B23K15/10; B23K35/38
Foreign References:
| US3585348A | 1971-06-15 | |||
| US3393289A | 1968-07-16 | |||
| US4304979A | 1981-12-08 | |||
| DE10157403A1 | 2003-06-12 | |||
| DE19526324A1 | 1997-01-23 |
Other References:
PATENT ABSTRACTS OF JAPAN vol. 006, no. 144 (E - 122) 3 August 1982 (1982-08-03)
"Schutzgase zum lichtbogenschweissen und schneiden", DIN EN 439, XX, XX, 1998, pages 192 - 196, XP002274674
"Schutzgase zum lichtbogenschweissen und schneiden", DIN EN 439, XX, XX, 1998, pages 192 - 196, XP002274674
Download PDF: