Penetration depth in laser beam welding

Journal Article · Sun Aug 01 04:00:00 EDT 1993 · Welding Journal (Miami); (United States)

OSTI ID:6274479

Metzbower, E A ^[1]

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1. Naval Research Lab., Washington, DC (United States)

The depth of penetration in laser beam welding of steels has been determined by two different techniques. A 2[sup 3] factorial experiment was used to calculate the depth of penetration as a function of laser power, welding speed, and focal distance. Using Yates' algorithm, the main effects, the two-factor and three-factor interactions, were determined. A generalized multivariable least squares analysis of the data resulted in an equation that expressed the depth of penetration as a function of power, speed, focal distance and all combinations of those variables. A dimensional analysis of laser beam welding resulted in a functional relationship that expressed the depth of welding as a function of laser power, welding speed, beam diameter and thermal properties of the steel. Both of these techniques were then used to compare the calculations with sets of experimental data.

• OSTI ID: 6274479
• Journal Information: Welding Journal (Miami); (United States), Journal Name: Welding Journal (Miami); (United States) Vol. 72:8; ISSN 0043-2296; ISSN WEJUA3
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360101* -- Metals & Alloys-- Preparation & Fabrication
ALGORITHMS
ALLOYS
COMPARATIVE EVALUATIONS
DEPTH
DIMENSIONS
EVALUATION
FABRICATION
IRON ALLOYS
IRON BASE ALLOYS
JOINING
LASER WELDING
LEAST SQUARE FIT
MATHEMATICAL LOGIC
MATHEMATICS
MAXIMUM-LIKELIHOOD FIT
MULTIVARIATE ANALYSIS
NUMERICAL SOLUTION
PERFORMANCE
REGRESSION ANALYSIS
STATISTICS
STEELS
WELDING