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Title: Optical penetration sensor for pulsed laser welding

Abstract

An apparatus and method for determining the penetration of the weld pool created from pulsed laser welding and more particularly to an apparatus and method of utilizing an optical technique to monitor the weld vaporization plume velocity to determine the depth of penetration. A light source directs a beam through a vaporization plume above a weld pool, wherein the plume changes the intensity of the beam, allowing determination of the velocity of the plume. From the velocity of the plume, the depth of the weld is determined.

Inventors:
 [1];  [1];  [1];  [1]
  1. (Albuquerque, NM)
Issue Date:
Research Org.:
SANDIA CORP
OSTI Identifier:
873037
Patent Number(s):
6075220
Assignee:
Sandia Corporation (Albuquerque, NM) SNL
DOE Contract Number:  
AC04-94AL85000
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
optical; penetration; sensor; pulsed; laser; welding; apparatus; method; determining; weld; pool; created; particularly; utilizing; technique; monitor; vaporization; plume; velocity; determine; depth; light; source; directs; beam; changes; intensity; allowing; determination; determined; laser welding; light source; pulsed laser; weld pool; laser weld; optical technique; source directs; penetration sensor; /219/

Citation Formats

Essien, Marcelino, Keicher, David M., Schlienger, M. Eric, and Jellison, James L. Optical penetration sensor for pulsed laser welding. United States: N. p., 2000. Web.
Essien, Marcelino, Keicher, David M., Schlienger, M. Eric, & Jellison, James L. Optical penetration sensor for pulsed laser welding. United States.
Essien, Marcelino, Keicher, David M., Schlienger, M. Eric, and Jellison, James L. Sat . "Optical penetration sensor for pulsed laser welding". United States. https://www.osti.gov/servlets/purl/873037.
@article{osti_873037,
title = {Optical penetration sensor for pulsed laser welding},
author = {Essien, Marcelino and Keicher, David M. and Schlienger, M. Eric and Jellison, James L.},
abstractNote = {An apparatus and method for determining the penetration of the weld pool created from pulsed laser welding and more particularly to an apparatus and method of utilizing an optical technique to monitor the weld vaporization plume velocity to determine the depth of penetration. A light source directs a beam through a vaporization plume above a weld pool, wherein the plume changes the intensity of the beam, allowing determination of the velocity of the plume. From the velocity of the plume, the depth of the weld is determined.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2000},
month = {1}
}

Patent:

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