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Title: Concurrent ultrasonic weld evaluation system

Abstract

A system for concurrent, non-destructive evaluation of partially completed welds for use in conjunction with an automated welder is disclosed. The system utilizes real time, automated ultrasonic inspection of a welding operation as the welds are being made by providing a transducer which follows a short distance behind the welding head. Reflected ultrasonic signals are analyzed utilizing computer based digital pattern recognition techniques to discriminate between good and flawed welds on a pass by pass basis. The system also distinguishes between types of weld flaws. 5 figs.

Inventors:
; ;
Issue Date:
OSTI Identifier:
7255527
Patent Number(s):
4712722
Application Number:
PPN: US 6-772527
Assignee:
EG G, Inc., Wellesley, MA (United States)
DOE Contract Number:  
AC07-76ID01570
Resource Type:
Patent
Resource Relation:
Patent File Date: 4 Sep 1985
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING; WELDED JOINTS; ULTRASONIC TESTING; DEFECTS; PROCESS CONTROL; WELDING MACHINES; ACOUSTIC TESTING; CONTROL; JOINTS; MATERIALS TESTING; NONDESTRUCTIVE TESTING; TESTING; 420500* - Engineering- Materials Testing

Citation Formats

Hood, D W, Johnson, J A, and Smartt, H B. Concurrent ultrasonic weld evaluation system. United States: N. p., 1987. Web.
Hood, D W, Johnson, J A, & Smartt, H B. Concurrent ultrasonic weld evaluation system. United States.
Hood, D W, Johnson, J A, and Smartt, H B. Tue . "Concurrent ultrasonic weld evaluation system". United States.
@article{osti_7255527,
title = {Concurrent ultrasonic weld evaluation system},
author = {Hood, D W and Johnson, J A and Smartt, H B},
abstractNote = {A system for concurrent, non-destructive evaluation of partially completed welds for use in conjunction with an automated welder is disclosed. The system utilizes real time, automated ultrasonic inspection of a welding operation as the welds are being made by providing a transducer which follows a short distance behind the welding head. Reflected ultrasonic signals are analyzed utilizing computer based digital pattern recognition techniques to discriminate between good and flawed welds on a pass by pass basis. The system also distinguishes between types of weld flaws. 5 figs.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1987},
month = {12}
}