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ASTM E751-07
Standard Practice for Acoustic Emission Monitoring During Resistance Spot-Welding
STANDARD published on 15.2.2007
The information about the standard:
Designation standards: ASTM E751-07
Note: WITHDRAWN
Publication date standards: 15.2.2007
SKU: NS-47891
The number of pages: 7
Approximate weight : 21 g (0.05 lbs)
Country: American technical standard
Category: Technical standards ASTM
Annotation of standard text ASTM E751-07 :
Keywords:
cracking, electrode wear, expulsion, feedback control, in-process monitoring, nugget size, phase transformation, resistance spot-welding, weld strength, ICS Number Code 17.140.20 (Noise emitted by machines and equipment), 25.160.10 (Welding processes)
Additional information
| Significance and Use | ||||||||
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The AE produced during the production of a spot-weld can be related to weld quality parameters such as the strength and size of the nugget, the amount of expulsion, and the amount of cracking. Therefore, in-process AE monitoring can be used both as an examination method, and as a means for providing feedback control. |
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| 1. Scope | ||||||||
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1.1 This practice describes procedures for the measurement, processing, and interpretation of the acoustic emission (AE) response associated with selected stages of the resistance spot-welding process. 1.2 This practice also provides guidelines for feedback control by utilizing the measured AE response signals during the spot-welding process. This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. |
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| 2. Referenced Documents | ||||||||
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