NDTnet 1998 June,
The ABC's of Nondestructive Weld Examination
An understanding of the benefits and drawbacks of each form of nondestructive
examination can help you choose the best method for your application
BY CHARLES HAYES *
The Paper was first published
in the Welding Journal May 1997
published by the The American Welding Society,
550 NW LeJeune Road, Miami, FL 33126.
CHARLES HAYES |
is International Sales/Support Manager,
The Lincoln Electric Co., Cleveland, Ohio.
He holds NDT Level III certification from the
American Society of Nondestructive Testing and is a member of the AWS D1D Subcommittee on Inspection.
An understanding of the benefits and drawbacks of each form of nondestructive examination can help you
choose the best method for your application. Five basic methods are commonly used to examine finished
welds: visual, liquid penetrant, magnetic particle, ultrasonic and radiographic (X-ray). The growing use of
computerization with some methods provides added image enhancement, and allows real-time or near
real-time viewing, comparative inspections and archival capabilities. A review of each method will help in
deciding which process or combination of processes to use for a specific job and in performing the
examination most effectively.
1998© Copyright Rolf Diederichs, firstname.lastname@example.org