Title:
CONTROLLER FOR ELECTRON BEAM WELDER
Document Type and Number:
Japanese Patent JPS60158992
Kind Code:
A
Abstract:
To control an electron beam welder to maintain the point of impact of an electron beam (16) on an intended weld line (6) between two weldments (2,4) and (if required) to monitor or control the beam area, strips of material (8, 10) are provided on each side of the weld line (6). The materials (8, 10) emit radiation predominantly of a specific wavelength when impinged upon by the electromagnetic radiation produced by the electron beam (16). Means is provided for generating an output signal proportional to the difference in radiation emitted by the two strips of material (8, 10), which output signal is available for controlling the transverse positioning of the electron beam as required to maintain the point of impact of the electron beam (16) along the intended weld line (6). Means may also be provided for generating an output signal proportional to the sum of the radiation emitted by the two strips of material (8, 10), which output signal is available for monitoring or controlling the area of the electron beam.
Inventors:
HENRII ARUBAATO DOMIAN
CHIYAARUZU MAIKERU UEBAA
CHIYAARUZU MAIKERU UEBAA
Application Number:
JP27110784A
Publication Date:
August 20, 1985
Filing Date:
December 24, 1984
Export Citation:
Assignee:
BABCOCK & WILCOX CO
International Classes:
B23K15/00; B23K15/02; H01J37/315; (IPC1-7): B23K15/00; H01J37/315
Domestic Patent References:
| JPS5750290A | 1982-03-24 | |||
| JPS5750289A | 1982-03-24 |
Attorney, Agent or Firm:
Motohiro Kurauchi