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Title: Apparatus for maintaining alignment of a shrinking weld joint in an electron-beam welding operation

Abstract

The present invention is directed to an apparatus for automatically maintaining a shrinking weld joint in alignment with an electron beam during an electron-beam multipass-welding operation. The apparatus utilizes a biasing device for continually urging a workpiece-supporting face plate away from a carriage mounted base that rotatably supports the face plate. The extent of displacement of the face plate away from the base is indicative of the shrinkage occuring in the weld joint area. This displacement is measured and is used to move the base on the carriage a distance equal to one-half the displacement for aligning the weld joint with the electron beam during each welding pass.

Inventors:
 [1];  [2]
  1. (Knoxville, TN)
  2. (Oak Ridge, TN)
Issue Date:
Research Org.:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN
OSTI Identifier:
863996
Patent Number(s):
4291219
Assignee:
United States of America as represented by United States (Washington, DC) ORNL
DOE Contract Number:  
W-7405-ENG-26
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
apparatus; maintaining; alignment; shrinking; weld; joint; electron-beam; welding; operation; directed; automatically; electron; beam; multipass-welding; utilizes; biasing; device; continually; urging; workpiece-supporting; plate; carriage; mounted; base; rotatably; supports; extent; displacement; indicative; shrinkage; occuring; measured; move; distance; equal; one-half; aligning; pass; weld joint; apparatus utilizes; beam welding; biasing device; electron beam; distance equal; welding operation; shrinking weld; carriage mounted; /219/318/

Citation Formats

Trent, Jett B., and Murphy, Jimmy L. Apparatus for maintaining alignment of a shrinking weld joint in an electron-beam welding operation. United States: N. p., 1981. Web.
Trent, Jett B., & Murphy, Jimmy L. Apparatus for maintaining alignment of a shrinking weld joint in an electron-beam welding operation. United States.
Trent, Jett B., and Murphy, Jimmy L. Thu . "Apparatus for maintaining alignment of a shrinking weld joint in an electron-beam welding operation". United States. https://www.osti.gov/servlets/purl/863996.
@article{osti_863996,
title = {Apparatus for maintaining alignment of a shrinking weld joint in an electron-beam welding operation},
author = {Trent, Jett B. and Murphy, Jimmy L.},
abstractNote = {The present invention is directed to an apparatus for automatically maintaining a shrinking weld joint in alignment with an electron beam during an electron-beam multipass-welding operation. The apparatus utilizes a biasing device for continually urging a workpiece-supporting face plate away from a carriage mounted base that rotatably supports the face plate. The extent of displacement of the face plate away from the base is indicative of the shrinkage occuring in the weld joint area. This displacement is measured and is used to move the base on the carriage a distance equal to one-half the displacement for aligning the weld joint with the electron beam during each welding pass.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1981},
month = {1}
}

Patent:

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