Welding by electron bombardment
The invention relates to improvements in methods and apparatus for electron beam welding, utilizing an electron gun directing an electron beam into a chamber under partial continuous vacuum maintained by continuous pumping. The partical vacuum chamber terminates in a working chamber, and a valve device separates the partial vacuum chamber from the working chamber, the latter being fixed on a support actuated by a displacement device acting in a direction perpendicular to the electron beam. The gun is associated in known manner with a means for maintaining high vacuum and communicating with the partial vacuum chamber through a narrow orifice provided with a closure device, the partial vacuum chamber being associated with individual continuously-acting pumps. The displacement device comprises a first trolley slidably mounted on a second trolley and moving at right angles to the beam, the second trolley being slidably mounted in turn along a direction at right angles to that of the first trolley, on the frame of the machine.
- Assignee:
- Commissariat a l'Energie Atomique
- Patent Number(s):
- US 3965326
- OSTI ID:
- 7345416
- Resource Relation:
- Patent Priority Date: Priority date 26 Nov 1973, France
- Country of Publication:
- United States
- Language:
- English
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