DocumentCode
1382907
Title
Dynamic resistance test of spot welds
Author
Cherry, B. Lloyd
Author_Institution
Lamar State College of Technology, Beaumont, Texas
Volume
82
Issue
2
fYear
1963
fDate
5/1/1963 12:00:00 AM
Firstpage
121
Lastpage
123
Abstract
The quality of a spot weld is determined by applying a periodic pressure while a test current is flowing through it. Poor quality is indicated by a variation in the weld resistance which results in a periodic potential across the weld. This potential is amplified for ease of detection. When a sinusoidal alternating current is used the presence of harmonic potentials indicates a poor weld. Removal of the fundamental by a filter is desirable before amplification.
Keywords
Electrodes; Force; Harmonic analysis; Resistance; Spot welding; Strips;
fLanguage
English
Journal_Title
American Institute of Electrical Engineers, Part I: Communication and Electronics, Transactions of the
Publisher
ieee
ISSN
0097-2452
Type
jour
DOI
10.1109/TCE.1963.6373363
Filename
6373363
Link To Document