title: Spot Weld Analysis With 2D Ultrasonic Arrays.
abstract: This paper describes a threefold method of testing the performance of an array-based ultrasonic tool for nondestructive testing of spot welds. The tool is described in its capabilities, use, and advantages over existing counterparts. Performance testing for and the results from carrying out the testing are described. The three performance testing methods include 1) the use of calibrated samples, 2) comparisons with actual spot-welds, and 3) a performance evaluation of the embedded fitting software. The test of the fitting software was carried out by a comparison of results with reference fits supplied by the National Institute of Standards and Technology.
authors.affiliation: University of Windsor, Windsor, Ontario N9B 3P4.
authors.forename: A A
authors.initials: AA
authors.lastname: Denisov
authors.affiliation: National Institute of Standards and Technology, Gaithersburg, MD 20899.
authors.forename: C M
authors.initials: CM
authors.lastname: Shakarji
authors.affiliation: National Institute of Standards and Technology, Gaithersburg, MD 20899.
authors.forename: B B
authors.initials: BB
authors.lastname: Lawford
authors.affiliation: University of Windsor, Windsor, Ontario N9B 3P4.
authors.forename: R Gr
authors.initials: RG
authors.lastname: Maev
authors.affiliation: DaimlerChrysler, Auburn Hills, MI 48326.
authors.forename: J M
authors.initials: JM
authors.lastname: Paille
keywords: least-squares; nondestructive analysis; spot weld; transducer; two-dimensional; ultrasonic