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Title: Electrode cartridge for pulse welding

Abstract

A cartridge assembly for a tool includes a cartridge body or casing that contains a conductor. A conductor is connected to a pulse generator or source of stored charge that is discharged to vaporize the conductor and create an electro-hydraulic or electro-magnetic shockwave that is used to impact or pulse weld two parts together.

Inventors:
; ; ;
Publication Date:
Research Org.:
FORD GLOBAL TECHNOLOGIES, LLC, Dearborn, MI (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1363771
Patent Number(s):
9,676,054
Application Number:
14/454,968
Assignee:
FORD GLOBAL TECHNOLOGIES, LLC DOEEE
DOE Contract Number:
EE0006432
Resource Type:
Patent
Resource Relation:
Patent File Date: 2014 Aug 08
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING

Citation Formats

Bonnen, John Joseph Francis, Golovashchenko, Sergey Fedorovich, Mamutov, Alexander, and Maison, Lloyd Douglas. Electrode cartridge for pulse welding. United States: N. p., 2017. Web.
Bonnen, John Joseph Francis, Golovashchenko, Sergey Fedorovich, Mamutov, Alexander, & Maison, Lloyd Douglas. Electrode cartridge for pulse welding. United States.
Bonnen, John Joseph Francis, Golovashchenko, Sergey Fedorovich, Mamutov, Alexander, and Maison, Lloyd Douglas. Wed . "Electrode cartridge for pulse welding". United States. doi:. https://www.osti.gov/servlets/purl/1363771.
@article{osti_1363771,
title = {Electrode cartridge for pulse welding},
author = {Bonnen, John Joseph Francis and Golovashchenko, Sergey Fedorovich and Mamutov, Alexander and Maison, Lloyd Douglas},
abstractNote = {A cartridge assembly for a tool includes a cartridge body or casing that contains a conductor. A conductor is connected to a pulse generator or source of stored charge that is discharged to vaporize the conductor and create an electro-hydraulic or electro-magnetic shockwave that is used to impact or pulse weld two parts together.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Wed Jun 14 00:00:00 EDT 2017},
month = {Wed Jun 14 00:00:00 EDT 2017}
}

Patent:

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  • A cartridge assembly is disclosed for a pulse welding a first tube supported on a mandrel to a second tube. An outer tool is assembled over the second tube and a stored charge is discharged in the cartridge assembly. The cartridge comprises an annular conductor and a solid casing enveloping the conductor. The stored charge is electrically connected to the conductor and discharged through the conductor to compress the second tube and pulse weld the second tube to the first tube.
  • A method for maintaining a constant arc gap between the electrode and the weld puddle by controlling the addition of filler wire based on the arc voltage.
  • A method is described for the butt-welding of a relatively heavy mass to a relatively small mass such as a thin-wall tube. In butt-welding heat is normally applied at the joint between the two pieces which are butt-welded together. The application of heat at the joint results in overheating the tube which causes thinning of the tube walls and porosity in the tube material. This is eliminated by displacing the welding electrode away from the seam toward the heavier mass so that heat is applied to the heavy mass and not at the butt seam. Examples of the parameters usedmore » in welding fuel rods are given. The cladding and end plugs were made of Zircalloy. The electrode used was of 2 percent thoriated tungsten. (auth)« less