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Title: Method for laser welding a fin and a tube

Abstract

A method of laser welding a planar metal surface to a cylindrical metal surface is provided, first placing a planar metal surface into approximate contact with a cylindrical metal surface to form a juncture area to be welded, the planar metal surface and cylindrical metal surface thereby forming an acute angle of contact. A laser beam, produced, for example, by a Nd:YAG pulsed laser, is focused through the acute angle of contact at the juncture area to be welded, with the laser beam heating the juncture area to a welding temperature to cause welding to occur between the planar metal surface and the cylindrical metal surface. Both the planar metal surface and cylindrical metal surface are made from a reflective metal, including copper, copper alloys, stainless steel alloys, aluminum, and aluminum alloys.

Inventors:
 [1];  [2];  [3]
  1. Tijeras, NM
  2. Albuquerque, NM
  3. Santa Fe, NM
Issue Date:
Research Org.:
Sandia National Laboratories (SNL), Albuquerque, NM, and Livermore, CA (United States)
OSTI Identifier:
874045
Patent Number(s):
6300591
Assignee:
Sandia Corporation (Albuquerque, NM)
Patent Classifications (CPCs):
B - PERFORMING OPERATIONS B23 - MACHINE TOOLS B23K - SOLDERING OR UNSOLDERING
DOE Contract Number:  
AC04-94AL85000
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
method; laser; welding; tube; planar; metal; surface; cylindrical; provided; placing; approximate; contact; form; juncture; welded; forming; acute; angle; beam; produced; example; yag; pulsed; focused; heating; temperature; occur; reflective; including; copper; alloys; stainless; steel; aluminum; planar metal; acute angle; reflective metal; steel alloy; beam heating; laser welding; metal surface; laser beam; stainless steel; pulsed laser; aluminum alloy; copper alloy; steel alloys; aluminum alloys; cylindrical metal; laser weld; copper alloys; /219/228/

Citation Formats

Fuerschbach, Phillip W, Mahoney, A Roderick, and Milewski, John O. Method for laser welding a fin and a tube. United States: N. p., 2001. Web.
Fuerschbach, Phillip W, Mahoney, A Roderick, & Milewski, John O. Method for laser welding a fin and a tube. United States.
Fuerschbach, Phillip W, Mahoney, A Roderick, and Milewski, John O. Mon . "Method for laser welding a fin and a tube". United States. https://www.osti.gov/servlets/purl/874045.
@article{osti_874045,
title = {Method for laser welding a fin and a tube},
author = {Fuerschbach, Phillip W and Mahoney, A Roderick and Milewski, John O},
abstractNote = {A method of laser welding a planar metal surface to a cylindrical metal surface is provided, first placing a planar metal surface into approximate contact with a cylindrical metal surface to form a juncture area to be welded, the planar metal surface and cylindrical metal surface thereby forming an acute angle of contact. A laser beam, produced, for example, by a Nd:YAG pulsed laser, is focused through the acute angle of contact at the juncture area to be welded, with the laser beam heating the juncture area to a welding temperature to cause welding to occur between the planar metal surface and the cylindrical metal surface. Both the planar metal surface and cylindrical metal surface are made from a reflective metal, including copper, copper alloys, stainless steel alloys, aluminum, and aluminum alloys.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Mon Jan 01 00:00:00 EST 2001},
month = {Mon Jan 01 00:00:00 EST 2001}
}