Test system for defect determination in welding seams

Details Test system for defect determination in welding seams Test system for defect determination in welding seams

1982-09-08

1985-07-30

Ciarlante, Anthony V.

Measuring and testing

Vibration

By mechanical waves

73602, 73622, 73638, G01N 2904

Patent

active

045314098

ABSTRACT:
A system for non-destructive testing of metallic materials and for, in particular, welding seams. An ultrasonic sensor is employed and ultrasonic defect signals are producted according to the pulse echo method. The ultrasonic defect signals are digitized and the digitized signals are combined with signals corresponding to longitudinal positions along the welding seam. A defect curve is produced form the data resulting from combining the digitized signals with the signals corresponding to longitudinal positions along the welding seam. The resulting defect curve is compared with data from a catalog of classes of defects. The system eliminates the need for manual ultrasonic reinspection of presumed welding defects.

REFERENCES:
patent: 3332278 (1967-07-01), Wood et al.
patent: 3411344 (1968-11-01), Lloyd
patent: 3868847 (1975-03-01), Gunkel
patent: 3996791 (1976-12-01), Niklas et al.
patent: 4055989 (1977-11-01), Henry et al.

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